Greek inventor and electronic engineer Petros Zografos presents here an application of his patented method for oscillatory pulse catalytic hydrogen (HHO) extraction from seawater to be used as fuel.

(editors note: this could be huge! A world changing/saving invention...)

Improving the efficiency of solar photovoltaic cells has been one of Arena’s most successful projects. Photograph: Colin Anderson/Getty Images

As demand for sustainable energy increases, Australia’s independent renewable energy agency has to choose to fund some projects over others – to varying degrees of success...

President-elect Donald Trump during the first stop of his post-election “thank you” tour, at U.S. Bank Arena in Cincinnati. (Mark Lyons/European Pressphoto Agency)

There has been a lot of speculation since climate change doubter Donald Trump’s election about what the consequences could be for global climate action. Some analysts cite very dire implications, and others suggest that clean energy growth will continue apace...

President-elect Donald Trump, shown here at a campaign event in Dallas in September, has filled his prospective Cabinet with opponents of carbon regulations as well as a number of officials who question established climate science. Photo courtesy of AP Images.

It was just one year ago, and from the White House on down, everyone who worked to make the Paris climate agreement a success was dizzy from victory laps...

Migrants listened on Aug. 11 as the manager of a transit center in Agadez, Niger, read the names of those who would be boarding buses back to their homes.Credit: Josh Haner/The New York Times

Josh Haner has photographed eight stories across five countries this year about the effects of climate change, often employing drones to get unique vantage points. Mr. Haner is a staff photographer and a senior editor for photo technology at The New York Times. He talked with James Estrin about finding new ways to visualize climate change. The conversation has been edited for clarity and brevity.

Governor Jerry Brown and other political and business leaders in California spit defiance at the Trump administration over climate change and other environmental issues.Photo: Vivien Killilea/Getty Images for Berggruen Institute

One of the ongoing news stories we are likely to hear about in 2017 is the state of California’s defiance of a climate-science-denying Trump administration. With fossil-fuel enthusiast Scott Pruitt slated to execute a hostile takeover of the Environmental Protection Agency, and given a Trump economic strategy that may depend on a massive expansion of oil, gas, and even coal production, everything blue states — and especially California — have been planning on for years in the way of carbon-emissions reduction and clean-energy promotion is in peril...

Wind power, old and new, west of Bowling Green. A new bill would freeze at current levels the amount of wind energy Ohio utilities must use.(Photo: ASSOCIATED PRESS )

But the Environmental Defense Fund said the veto will allow Ohio to become a leader in the clean energy economy, "clearing the way for well-paying jobs, millions in investment, and healthier air for all."

The flooded high street in Cockermouth in the Lake District, days after Storm Desmond on 6 December 2015. Photograph: Christopher Furlong/Getty Images

A year after severe floods in wake of Storm Desmond, John Krebs says ministers still have no coherent long-term plan to deal with it...

• This map shows the reduction of Arctic sea ice since 1981. National Oceanic and Atmospheric Administration

This is the time of year when some people talk about the news stories that didn't receive the attention they merited over the past year...

Renewables kept the lights on in Lisbon for four and a half days in May. Photograph: ImageBroker/Rex/Shutterstock

Campaigners say the 107 hours when the country was powered by wind, sun and water show they can replace fossil fuels...

Rick Bowmer/AP

For the first time, the costs of wind and solar power have dropped to match those of fossil fuels. Environmental advocates hope that could make businesses more likely to opt for renewable energy sources when calculating their costs...

The oil fields of the Uintah Basin, southeast of Vernal, Utah. (Trent Nelson / Salt Lake Tribune)

The election of Donald Trump has thrilled many people across the West’s oil and gas industry who say his promises to roll back regulations will free it from unfair and unnecessary obstacles imposed by President Obama...

A farmer in Zimbabwe examines a field where crops once grew AP

'As we enter 2017, over 37 million people across Africa are without food,' warns International Development Secretary Priti Patel...

Lucas Jackson / Reuters

The science of man-made global warming has only grown more conclusive. So why have Republicans become less convinced it’s real over the past decade and a half?

Rescue workers in Carlisle after Storm Desmond in December 2015. Flooding has been particularly costly for the UK in recent years. Photograph: Peter Byrne/PA

First climate change risk assessment since 2012 will have considerable implications for future green policy...

Scientists have found connections between climate change and the appearance of new diseases, especially vector borne diseases, including dengue fever and malaria. credit: VietNamNet Bridge

Vietnam is among five countries in the world to suffer the most from climate change...

A man wearing a respiratory protection mask walks toward an office building during the smog after a red alert was issued for heavy air pollution in Beijing's central business district, China, December 21, 2016. REUTERS/Jason Lee

BEIJING: China has passed a law that levies taxes on pollution, but ignores carbon dioxide, one of the major contributors to global warming, according to the web site of the country's highest legislative body...

Only one major political party in the world denies climate change, and it's in charge of the most important political body in the world...

"The energy system and the tax system have got to be simplified in a way that everybody understands and doesn’t allow the wealthy few to completely rig the system," says Hansen. Benedict Evans/Redux

"We have not hit the disastrous level," says leading climate scientist James Hansen. "But we are close."

Credit: Izhar Cohen

Why worldview threats undermine evidence...