Last Updated: 4.1.2026  Reading time: 8–12 minutes (depending on how often you stop to scream into a pillow.)

 

Quick summary (for humans with jobs)

Global warming is not a “future problem.” It’s a right-now systems problem: rising greenhouse gases, rising heat, rising extremes, rising costs, rising global conflicts pressure, and rising risk of crossing thresholds we don’t get to uncross. The world is still emitting at record levels, and most public plans rely on optimistic assumptions.

Our planning approach: We apply a 20–40% “optimism discount” to many official government and IPCC timelines and outcomes to reflect missing feedback, conservative public communication, and “best-case” modeling habits. It’s a risk-management buffer, not a magic law of physics. (Click here for the 7 good reasons why our discounting the IPCC, government, and media climate change "facts" by 20-40% is just prudent and smart survival.)

 

Here are TODAY'S most important climate change facts to never forget

Fact 1: Greenhouse gases are at record highs, and global warming has not “paused, it is accelerating!”

CO₂ is near 429 ppm at Mauna Loa (early March 2026), rising year over year. Methane and nitrous oxide are also elevated and continue to increase.

Why it matters:

• • CO₂ persists for a long time. Much of today’s global warming is the delayed response to yesterday’s emissions.

  • Methane is shorter-lived than CO₂ but about 80 times more potent in the near term, making it a nasty global warming accelerant.

Translation: the atmosphere is not negotiating. It’s just doing chemistry.

 

 

Fact 2: Despite 60 years of valid scientific warning and 30 international climate conferences, global fossil fuel use is not being reduced anywhere close to where it needs to be.

We’ve already dumped roughly ~2.4 trillion tons of CO₂ into the atmosphere since 1850, and we are adding even more every year. 

IPCC AR6 estimates historical cumulative net CO₂ emissions (1850–2019) at about 2400 ± 240 GtCO₂ (≈ 2.4 trillion tons CO₂).

• • Warming is strongly linked to cumulative CO₂ (the “carbon budget” logic). 

Important clarification: This figure pertains only to CO₂. Don’t call it “CO₂ + methane + nitrous oxide tons” unless you’re using a consistent CO₂e method and stating it that way.

 

Fact 3: “Plan A” (gradual cuts + distant net-zero) has not worked over the last 60 years, and emissions remain high and continue to rise at faster rates than ever before.

Global fossil CO₂ emissions have remained near record levels in recent years.

Why this keeps happening (non-mystical reasons):

• • Fossil fuels are still deeply embedded in energy, transport, agriculture, industry, and geopolitics.

  • Institutions prefer slower change because fast change is disruptive (and humans hate disruption unless it’s an app update).

  • Disinformation and political pressure have materially delayed action in multiple countries (as documented in numerous investigations and academic analyses).

Bottom line: if the plan requires everything going right, it’s not a plan. It’s a wish. We need a new Plan B!

 

Fact 4: Many “official” government and IPCC forecasts and fossil fuel reduction plans are far too optimistic for safety planning for you, your family, and your business's future.

This is where we apply the well-founded 20–40% underestimation buffer from Job One for Humanity.

Why do we apply this 20-40% underestimation buffer?

60 years of government fossil fuel reduction failures strongly suggest that major public forecasts often understate risk and/or assume unrealistically smooth transitions and reductions, so honest planning should discount rosy current government and media projections by 20–40%.

There’s also mainstream literature showing that economic and policy modeling often underprices fat-tail risks and serious damages (especially when climate systems become nonlinear, can change suddenly for the worse, exponentially, or involve major financial conflicts of interest over the information presented or the required changes). There is also extensive credible research that financial vested interests in the fossil fuel industry have significantly corrupted climate change information and the climate change regulation process. Click here for information and documentation on this financial vested-interest interference.

What we do at Job One with this 20 to 40% discount for government and media (and yes, UN, IPCC) predicted climate change consequence severity and timetables 

• • If a government or media plan says “X by 2050,” we ask: what if it’s effectively X by 2040–2045 or sooner in terms of impacts, tipping points, costs, or urgency?

  • If a scenario assumes some massive future carbon removal, we treat that as highly unlikely, but helpful if it arrives, and not something civilization should bet its spine on. The IPCC does include carbon dioxide removal in its pathways, but the technical feasibility, scale, and governance risks are real and significant.

Important: Our 20–40% discounting of climate reports reflects a prudent risk posture well aligned with the Precautionary Principle. It’s not “the IPCC is wrong by exactly 33.7%.” Reality refuses to be that tidy. 

What does his means to you when you hear government, IPCC, or media forecasts for climate change future temperature, consequence severity, or consequence timetables? 

Smart climate change planners will always discount government, IPCC, or media forecasts and estimates of the severity and timelines of climate change consequences by 20 to 40% to avoid being caught unprepared. (Click here for the reasons why the 20-40% underestimation factor is both valid and reasonable.) (Click here for the 7 good reasons why discounting the IPCC, government, and media climate change "facts" by 20-40% is just prudent and smart.)

 

Fact 5: The 1.5°C average global warming increase that exists now is a warning light. 2°C is a major danger zone. The timing depends on choices, but the direction is not in doubt. We are headed for a world of climate change suffering and loss if we do not change our ways very fast.

Analyses of IPCC AR6 pathways commonly show ~2°C around mid-century or sooner in intermediate scenarios, and significantly earlier in high-emissions scenarios.

Why 2°C matters

Most people also do not understand that a 2°C increase in average global temperature is, in itself, extremely detrimental. At about a 2°C increase, millions will die worldwide from starvation caused by the collapse of the world's reef system, and low-yielding and failed crops because of the many primary and secondary consequences of climate change. 

At higher temperatures, multiple risks intensify: heat stress, significant crop disruption, water instability, fire weather, coastal flooding, pressure on ecosystem collapse, and conflict multipliers. (Not “guaranteed apocalypse,” but definitely “bad decisions become lethal faster.”)

 

 

What about “2°C sometime in the 2030s” as Job One has argued is very possible?

There is a REAL and accelerating fat-tail risk we will reach 2°C above pre-industrial levels long before 2050. (Fat tails occur especially when climate sensitivity is higher and climate change tipping points, feedback loops, and nonlinear reactions bite much harder in what is called the Climageddon Feedback Loop).

 

 

Fact 6. It would be very wise to start your personal, family, or business climate change Plan B. (Plan A has failed for 60 years, and the risks are far too high to keep doing the same thing and expect a different result.)

Plan B Step 1: Cut fossil fuels fast enough to save the future.

Use honest reduction targets grounded in physics and carbon budgets, not PR deadlines or what is best for those with vested financial interests in the fossil fuel industries. (Our job one plan provides the required honest, global fossil fuel reduction targets here.)

Prioritize methane reductions (fast climate benefit), electrification, efficiency, grid upgrades, and ending fossil expansion.

Plan B Step 2: Prepare for an unavoidable ecological, financial, social, and political disruption from climate change consequences already occurring, soon-arriving in the pipeline, and in the not-too-distant future.

Hardening infrastructure, heat planning, water planning, food resilience

Managed retreat where necessary

Financial and relocation planning where exposure is unavoidable

Click here or on the Plan B illustration below to learn about everything that's in Plan B that will make your life far safer and easier in the future.

 

 

 

Fact 7. Grasp solidly that our climate change future is being controlled by two powerful forces: one is our current irreversible global warming that will last for centuries to millennia, and the second is the Climageddon Feedback Loop 

Yes, it’s unfair. No, the atmosphere does not care. Yes, we are already experiencing irreversible global warming that will last for centuries, if not millennia. (Irreversible global warming is clearly and painfully defined here and is critical to understand to grasp the full seriousness of the emergency humanity now faces.)

Most people have no idea that the pace at which the consequences of climate change will unfold is also changing dramatically! From now until 2031, and this is essential, the severity, frequency, and scale of these climate change consequences will increase dramatically, far beyond what you have experienced over the past decades!

Because most people and businesses do not fully grasp that the severity, frequency, and scale of climate change consequences are likely to increase dramatically from now through 2031 (and could continue to increase exponentially thereafter), they are unknowingly putting themselves at extremely high risk. They are not beginning their financial and personal emergency-preparation, adaptation, resilience-building, and, where applicable, migration or Managed Retreat.

After 2031, the severity, frequency, and size of climate change consequences will go from increasing dramatically to increasing exponentially! That is where the Climageddon Feedback Loop comes in.

It is caused by rising temperatures, and their repercussions will trigger additional tipping points, feedback loops, and nonlinear reactions within the climate system and its subsystems. There are literally thousands of major and minor tipping points, feedback loops, and non-linear reactions within the climate and its subsystems. How climate change consequences can go from a gradual increase, to a dramatic increase, to an exponential increase is fully explained in the Climageddon Feedback Loop here.

Of all seven facts, fully and deeply understanding number seven, without the normal human denial, is the most important.

Please do not skip reading the full linked definitions above for irreversible global warming and the Climageddon Feedback Loop. If you do not understand these two links, you will have a very poor idea of what will be coming at you, your family, business, and nation very quickly! Irreversible global warming and the Climageddon Feedback Loop are, in fact, the two most important climate change concepts to understand if you want to understand your future.

What we are trying to make painfully real to you, because it will be so painful is that you do not want to live in a world of an average global temperature increase of 2°C since pre-industrial times. There are very specific primary and secondary consequences that will unfold like a train racing down a mountain awith no brakes.

This means if you haven't done so already, it is imperative that you read our new article that clearly and an undeniable detail lays out the sequence of primary and secondary consequences which will be your and your children's future if we are unable to keep global warming under 2°C. Click here to read the exact primary and secondary consequences of climate change that are our current future.

 

FAQ 

What’s the difference between global warming and climate change?

Global warming is the rise in Earth’s average temperature driven mainly by greenhouse gases.
Climate change is the broader package of impacts: shifting rainfall, extreme events, sea-level rise, ecosystem disruption, and knock-on economic and political stress.

Is CO₂ really that high right now?

Yes. ~429 ppm (early March 2026) at Mauna Loa.

Are climate models “wrong”?

They’re models. Some are conservative about certain tail risks, some miss or simplify feedbacks, and some economic models especially can understate damages. That’s why we plan with buffers and scenario ranges.

Does carbon capture help?

Some carbon capture (especially point-source in hard-to-abate industry, and well-governed removals) can help. But large-scale future removal is uncertain and should not be treated as a free “erase my emissions later” card.

Who caused most of this?

Primarily fossil fuel extraction and burning (plus land-use change). There’s also extensive documentation of concentrated corporate contributions to emissions and of influence campaigns.

What should I actually do?

1. 1. Reduce your exposure (heat, flood, fire, insurance, water, food).

   2. Support policies that cut emissions fast (local to national).

   3. Talk about it plainly, with receipts (facts + sources), not vibes.

 

 

5 Fact References 

• IPCC AR6 Synthesis Report (cumulative emissions; carbon budgets).

• NOAA Mauna Loa CO₂ daily data (current CO₂).

• Global Carbon Budget (recent emissions).

• Carbon Brief explainer on AR6 scenario crossing times (2°C timing).

• Risk/underestimation framing (economic modeling critique).

• Universe Institute 2026 Climate Change forecast page

 

Extended Bibliography

The following bibliography, both directly and indirectly, supports the analysis presented for the specific areas discussed on the page.

 

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1. Climate Sensitivity (ECS), Forcing, and Long-Term Warming

Charney, J., et al. (1979). Carbon Dioxide and Climate: A Scientific Assessment. National Academy of Sciences. Wikipedia

Hansen, J., Sato, M., Kharecha, P., et al. (2008). Target atmospheric CO₂: Where should humanity aim? The Open Atmospheric Science Journal, 2, 217–231. arXiv

Hansen, J., Sato, M., Kharecha, P., et al. (2023). Global warming in the pipeline. Oxford Open Climate Change, 3(1), kgad008. (Argues for an effective ECS ~4.8 °C and much stronger committed warming.) OUP Academic+1

Sherwood, S. C., Webb, M. J., Annan, J. D., et al. (2020). An assessment of Earth’s climate sensitivity using multiple lines of evidence. Reviews of Geophysics, 58(4), e2019RG000678. (Constrains ECS to ~2.6–3.9 °C, with 2–4.5 °C very likely.) AGU Publications+1

He, H., Kramer, R. J., Soden, B. J., & Jeevanjee, N. (2022). State-dependence of CO₂ forcing and its implications for climate sensitivity. Geophysical Research Letters. (Shows forcing increases with background state, tending to push effective ECS higher.) arXiv

IPCC. (2021). Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report (AR6). Cambridge University Press. (Ch. 1, 4, 7: ECS assessed likely 2.5–4 °C; warming since 1970 is faster than any 50-year period in 2,000 years.) ipcc.ch+1

 

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2. Irreversibility and “Locked-In” Warming

Solomon, S., Plattner, G. K., Knutti, R., & Friedlingstein, P. (2009). Irreversible climate change due to carbon dioxide emissions. Proceedings of the National Academy of Sciences, 106(6), 1704–1709. (Shows large components of warming, sea-level rise, and aridification are effectively irreversible on ~1,000-year timescales.) PNAS+1

Solomon, S., et al. (2010). Persistence of climate changes due to a range of greenhouse gases. Proceedings of the National Academy of Sciences, 107(43), 18354–18359. (Extends irreversibility analysis to other GHGs.) PNAS

IPCC. (2021). AR6 WGI, Chapter 4: Future global climate: Scenario-based projections and near-term information. (Synthesizes evidence for abrupt and irreversible changes; cross-chapter assessment of tipping-like behaviour.) ipcc.ch+1

 

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3. Tipping Points and Non-Linear Responses

Lenton, T. M., Held, H., Kriegler, E., et al. (2008). Tipping elements in the Earth’s climate system. Proceedings of the National Academy of Sciences, 105(6), 1786–1793. (Classic first synthesis of major tipping elements.) Wikipedia

Armstrong McKay, D. I., Abrams, J. F., Winkelmann, R., et al. (2022). Exceeding 1.5 °C global warming could trigger multiple climate tipping points. Science, 377(6611), eabn7950. (Identifies a cluster of tipping elements likely or possible already between ~1–2 °C.) PubMed+1

Ashwin, P., & von der Heydt, A. S. (2019). Extreme sensitivity and climate tipping points. Nonlinearity, 32(11), R1–R44. (Shows how tipping points can produce extreme, regime-dependent ECS values.) arXiv

IPCC. (2021). AR6 WGI, Chapter 4 & Box 4.3 on abrupt and irreversible changes and ice-sheet tipping behavior. ipcc.ch+1

 

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4. Emissions, Concentrations, and Remaining Carbon Budgets

Friedlingstein, P., et al. (2023). Global Carbon Budget 2023. Earth System Science Data, 15, 5301–5369. (Details cumulative emissions, current 417+ ppm CO₂ in 2022, and shrinking 1.5/2 °C carbon budgets.) ESSD

Global Carbon Project / Our World in Data. (2025). Cumulative CO₂ emissions including land-use change, 1850–2024. (Shows cumulative emissions now exceed ~2–2.5 trillion tonnes CO₂.) Our World in Data+2Our World in Data+2

IPCC. (2023). Climate Change 2023: Synthesis Report. (Provides updated remaining carbon budgets to limit warming to 1.5 °C and 2 °C, plus probability bounds.) ipcc.ch

WMO. (2024). State of the Global Climate 2023 and Greenhouse Gas Bulletin. (Documents record-high CO₂, CH₄, N₂O levels and continued rapid warming; 2023 ~1.45 °C above pre-industrial.) AP News+1

IPCC. (2018). Global Warming of 1.5 °C (SR1.5). (Early synthesis of budgets and impacts for 1.5 vs 2 °C.) ESSD

 

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5. Underestimation, “Conservative Bias,” and Extremes Arriving Faster Than Expected

Brysse, K., Oreskes, N., O’Reilly, J., & Oppenheimer, M. (2013). Climate change prediction: Erring on the side of least drama? Global Environmental Change, 23, 327–337. (Documents systematic tendencies toward conservative, low-end projections in climate science and IPCC assessments.) ScienceDirect+1

Kornhuber, K., et al. (2024). Global emergence of regional heatwave hotspots outpaces climate models. Proceedings of the National Academy of Sciences, 121(xx), e2411258121. (Shows extreme heat is increasing significantly faster in observations than in state-of-the-art models in several regions.) PNAS+1

Rogers, C. D. W., et al. (2022). Sixfold increase in historical Northern Hemisphere concurrent summer heatwaves driven by warming. Journal of Climate. American Meteorological Society Journals+1

Rousi, E., et al. (2022). Accelerated western European heatwave trends linked to more persistent double-jet states. Nature Communications, 13, 3851. (Demonstrates very rapid growth in European heat extremes.) Nature

Otto, F. E. L. (2023). Attribution of extreme events to climate change. Annual Review of Environment and Resources, 48, 1–27. (Reviews how attribution studies show strong links between extremes and anthropogenic warming.) Annual Reviews

World Weather Attribution (WWA). Ongoing attribution analyses of heatwaves, floods, and droughts worldwide; repeated finding that models often underestimate the observed increase in extreme heat, especially in Europe and the Mediterranean. worldweatherattribution.org+2worldweatherattribution.org+2

IPCC. (2021). AR6 WGI, Chapter 11 & Summary for Policymakers. (Concludes that heat extremes, heavy precipitation, and some droughts are already increasing in frequency and intensity; warming since 1970 is “widespread, rapid, and intensifying.”) World Meteorological Organization+3ipcc.ch+3ipcc.ch+3

 

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6. Impacts at 1.5–2 °C and Beyond: Food Systems, Habitability, and Mortality

IPCC. (2022). Climate Change 2022: Impacts, Adaptation, and Vulnerability. Contribution of Working Group II to AR6. Cambridge University Press. (Assesses rising risks to food security, health, and ecosystems for 1.5, 2, 3+ °C.) Stanford News

IPCC. (2018). Global Warming of 1.5 °C (SR1.5). (Shows profound differences in crop yields, coral reefs, water stress, and extreme heat impacts between 1.5 and 2 °C.) ESSD+1

Xu, C., Kohler, T. A., Lenton, T. M., Svenning, J.-C., & Scheffer, M. (2020). Future of the human climate niche. Proceedings of the National Academy of Sciences, 117(21), 11350–11355. (Estimates that by 2070, ~1–3 billion people could be pushed outside the historical “human climate niche” under high warming, implying massive migration, starvation, and mortality risks.) The Academy for Systems Change+1

Lenton, T. M., Rockström, J., Gaffney, O., et al. (2019). Climate tipping points — too risky to bet against. Nature, 575, 592–595. (Argues that cascading tipping points substantially raise the risk of large-scale societal disruption.) PreventionWeb

Lenton, T. M., Xu, C., Abrams, J. F., et al. (2023). Quantifying the human cost of global warming. Nature Sustainability, 6, 129–138. (Links warming levels to projected additional heat-related deaths and population exposure to dangerous heat.) Wikipedia

 

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7. Planetary Boundaries, Polycrisis, and System-Level Risk

Rockström, J., Steffen, W., Noone, K., et al. (2009). A safe operating space for humanity. Nature, 461, 472–475. (Introduces the planetary boundaries framework, placing climate change as one of several interacting global limits.) World Meteorological Organization

Steffen, W., Richardson, K., Rockström, J., et al. (2015). Planetary boundaries: Guiding human development on a changing planet. Science, 347(6223), 1259855. (Updates boundaries and stresses interactions between climate, biosphere integrity, and other domains.) World Meteorological Organization

Richardson, K., Steffen, W., Lenton, T. M., et al. (2023). Earth beyond six of nine planetary boundaries. Science Advances, 9(37), eadh2458. (Finds six of nine boundaries—including climate, biosphere integrity, land use, and biogeochemical flows—are already transgressed, supporting the “polycrisis” framing.) ICOS

 

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8. Global Collapse / Limits-to-Growth–Type Analyses (for Your MIT/Club of Rome References)

While not strictly “climate” studies, these are central to your references to MIT, Club of Rome, and collapse timeframes interacting with climate change:

Meadows, D. H., Meadows, D. L., Randers, J., & Behrens, W. W. (1972). The Limits to Growth. Universe Books. (World3 model showing overshoot and potential global collapse this century under business-as-usual.) Nature

Turner, G. M. (2014). Is global collapse imminent? MSSI Research Paper No. 4, University of Melbourne. (Shows historical data to ~2010 closely track the original “standard run” collapse scenario.) Science

KPMG International & Club of Rome. (2021). Limits to Growth: A review of 50 years of data. (Concludes that observed trends still broadly align with the original collapse-risk pathways.) Science

These provide the systems-dynamics backbone for your discussion of overlapping crises and the 2030–2050 collapse window.

 

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9. High-Level Syntheses Showing Warming is “Widespread, Rapid, and Intensifying.”

IPCC. (2021). AR6 WGI – Summary for Policymakers and overall report. (States that human influence is “unequivocal,” and that warming since 1970 is unprecedented in at least 2,000 years.) ipcc.ch+2ipcc.ch+2

WMO. (2021–2024). State of the Global Climate annual series, and related UN reports. (Documents record temperatures, sea-level rise, glacier loss, and marine heatwaves, with 2023–2024 as the hottest years on record and brief excursions beyond 1.5 °C in annual averages.) AP News+1

 

Other Helpful Job One Website Links

We understand the above is a shocking drop into the deep end, because it shocked us, too. We do not want to leave you stunned and upset, so we will share with you how we recovered from so much bad climate change news, anger, and anxiety. 

Click here to learn how we addressed and mitigated shock, anger, sadness, anxiety, and other emotions related to the climate change emergency.

While there is a lot of difficult news about our current climate situation, please do not think that we have given up hope on this challenging task, or that there are no big benefits we will receive from addressing climate change. When you're done reading this page, be sure to return to the following link first, then read the next link to help you maintain realistic hope and the balance we all need to get through this challenge together. The second article has been read by several million people.

Yes, it is hard to admit or face, but humanity is already in a very tough place! Given our current failures to reduce fossil fuel use, it is now uncertain whether we can stabilize the climate for many decades, centuries, or millennia, and secure a safe, stable future for current and future generations. Losing this battle against climate change does not mean giving up or that we have lost the war. There are many things we still need to do to adapt and save as much as possible.

If you want to stay informed as our climate change conditions worsen in different areas worldwide, sign up for your free Climate Change Danger Alerts and Updates Here! They are illustrated and usually 1-2 paragraphs long.

Click here to view our most up-to-date rising temperature timetable for the worst climate change consequence.

If you have learned enough and want to start preparing for the climate change emergency, building resilience, or taking necessary actions on migration and other matters, see below.

This page more fully explains why we continue to hold on to this reality-based hope despite the many challenges and setbacks humanity faces with climate change.) It has been viewed over 1 million times.

Click here to access our very detailed local and regional climate change consequence predictions for 2026.

Click here to access the emergency preparation information you need.

Click here for the information you need on building adaptive climate change resilience.

Click here for the necessary migration information. (Our extensive migration and other emergency essential information is found in our Members' section. It is easy to become a member.)

Who caused climate change?

Why 35 years of reduction failure/underestimation crisis hub.

Primary & secondary climate change consequences

Honest fossil fuel reduction targets

ClimateSafe eco-community guide

Carbon capture critique page

The 13 major global crises and Climate Change

Climate damage lawsuits resources

Managed retreat (climate migration reference)

Climate sensitivity (reference)

On this website, we use long-term climate forecasts and predictions, grounded in Dr. James Hansen's climate sensitivity (ECS) research and informed by his most recent studies, to guide our analysis and calculations. If you’re curious about what climate sensitivity (ECS) means—and why it’s one of the most critical constants in all climate modeling—please visit this new page, which explains both its importance and the current scientific debate surrounding it.

Please see the following linked article if you still do not believe we are in a climate change predicament. It precisely explains the predicament and what we need to do about it in a very warm and human way. The article is called, Our Environmental Predicament: Culture vs. Nature.

And if you’d like to explore the scientific basis behind our forecasts—including why our estimates are often 20–40 percent more severe than what you may hear from governments, the media, or even the U.N. IPCC—please click here for the science, validating the accuracy of our forecast.

Click here if you want to keep our climate change think tank independent and uncensored.

 

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