5 reasons the Arctic’s extremely warm winter should alarm you...

This polar bear is alarmed. LightRocket via Getty Images

 

You can see dramatic climate change impacts even in the dead of Arctic winter...

Cape Morris Jesup in Greenland is just about the northernmost piece of land on planet Earth. It’s located just 400 miles south of the North Pole, on Greenland’s craggy, desolate north shore. This is a place so far north that the sun doesn’t rise for most of the winter months.

In February, in the dark of winter, Cape Morris Jesup’s weather station recorded nearly 60 hours of temperatures above freezing — a new record. On February 24, the temperature reached a high of 43 degrees Fahrenheit.

Read the rest of the story HERE at https://www.vox.com/

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  • Thomas Miller
    commented 2018-03-18 02:43:44 -0700
    Oil and gas companies continue to explore. I can see only one way and that is to grow plants in desert regions to soak up carbon dioxide. I present a number of rain enhancement ideas at my profile page https://www.facebook.com/Swayseeker Lima could grow more with rain enhancement. I think it will work. Cape Town has a problem that is a little similar to that in Lima in Peru. The sea is fairly cold, so air that blows to land is cold and does not rise. If you look at RH the RH is often 80% or so in Lima, but the cold air makes the air stable and air from the sea does not rise. If you heated it it could. The average RH for the year in Lima is a very high 83% but rainfall is very low. I was interested to note that in 1998 sea temperatures near Lima increased from the usual 18 deg C or so (see Wikipedia on Lima) to around 26 deg C and that year heavy flooding in Peru was reported (https://reliefweb.int/report/peru/peru-el-niño-floods-situation-report-no5). Lima Peru has a problem in that the air is stable and moist air from the sea in not hot enough to rise and cause convectional rain. If you use plastic greenhouse sheeting to cover suitable areas you can heat a huge amount of air.
    Ordinary glass is transparent to solar radiation of up to about 3 microns in wavelength. Now it happens that, after the atmosphere has filtered out some radiation from the sun, practically all solar radiation that falls onto the ground is radiation of 0.3 to 2.5 microns in wavelength. Therefore practically all solar radiation enters through the glass and heats up objects inside the glass structure. If a dark body is heated up inside the structure and reaches a temperature of 60 deg C, then over 96% of the radiation from that dark body is radiation of more than 3 microns and cannot get out through the glass. Greenhouse plastic is similar to glass.
    So if people make wire cages with dark material (gauze and so on) in and wrap greenhouse plastic around and place these structures in the yard you will heat air in them and create a “convection city” that will enhance convectional rain. For free calculations people can contact me via https://www.facebook.com/Swayseeker
    If the authorities cover suitable areas (bare hills and so on) with greenhouse plastic a few metres above the ground they will heat huge quantities of air and the air will become unstable and the chances of rain will be increased.
    Example: Say air from the ocean blows to land and the temperature of the air is 25 deg C. Suppose relative humidity (RH) is 75%. Let atmospheric pressure be 1 atm. Suppose 3 kWh of solar energy falls on every square metre in a day. My calculations give me that the volumetric heat capacity of air under these conditions is 1.197 kJ per cubic metre per deg C. Using the greenhouse plastic a square metre of ground could heat 1003 cubic metres above it by 9 deg C. This is using only 1 square metre of ground under greenhouse plastic. There will be heat losses to ground and so on, but you can heat a huge amount of air with a large area covered by greenhouse plastic. Just as cool roofs reduce rainfall, so greenhouse plastic will increase rainfall. See https://www.scientificamerican.com/article/cool-roofs-may-have-side-effects-on-regional-rainfall/
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