Radiative Sky Cooling

Researchers at UCLA have produced a prototype energy unit that takes advantage of radiative sky cooling to generate electricity at night. As heat is radiated from objects facing the sky at night, a thermoelectric generator can be used to generate electricity from the temperature difference, in this case 25 milliwatts per square metre using equipment costing $30.

Flight Carbon Calculator

The Guardian have released a flight carbon calculator, allowing you to select your starting and destination airports to see how much kilograms of CO2 emmissions are released per passenger on that return flight. it also shows you how many countries emit less CO2 per person per year compared to that flight. Aviation is responsible for 2% of global emissions and are set to at least double by 2050 :-(

Show Your Stripes

Climate scientist at University of Reading Ed Hawkins has created the #ShowYourStripes datavis site, which generates an image of temperature increases for every country for the last 100 years or so. Each stripe averages the temperature over a year and is built from the Berkely Earth Temperature Dataset. (H/T to Mikael for sharing this)


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