https://cen.acs.org/environment/recycling/Plastic-problem-chemical-recycling-solution/97/i39
PET + polyethylene – 1 & 2 – are easiest to deal w/ mechanically rest are harder, so a chemical solution.
Posts Tagged ‘energyandenvironment’
Microplastics are everywhere — but are they harmful?
June 3, 2021worrisome for those committed to plastics
https://www.nature.com/articles/d41586-021-01143-3
They’re Among the World’s Oldest Living Things. The Climate Crisis Is Killing Them. – The New York Times
January 3, 2021https://www.nytimes.com/interactive/2020/12/09/climate/redwood-sequoia-tree-fire.html redwood, joshua tree, sequoia
The Roman Republic Was Teetering. Then a Volcano Erupted 6,000 Miles Away. – The New York Times
July 7, 2020A radiative cooling structural material | Science
April 19, 2020QT:{{”
A stronger, cooler wood
One good way to reduce the amount of cooling a building needs is to make sure it reflects away infrared radiation. Passive radiative cooling materials are engineered to do this extremely well. Li et al. engineered a wood through delignification and re-pressing to create a mechanically strong material that also cools passively. They modeled the cooling savings of their wood for 16 different U.S. cities, which suggested savings between 20 and 50%. Cooling wood would be of particular value in hot and dry climates.
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interesting material for anti-insulation
https://science.sciencemag.org/content/364/6442/760.full
https://science.sciencemag.org/content/364/6442/760.editor-summary
Сurrent weather and forecast – OpenWeatherMap
February 22, 2020CO emissions
February 16, 2020NYC doesn’t look that great either
https://www.windy.com/-Show—add-more-layers/overlays?cosc,17.289,99.356,3
January 2020 was Earth’s hottest January on record | National Oceanic and Atmospheric Administration
February 13, 2020How to stop data centres from gobbling up the world’s electricity
September 29, 2019QT:{{”
“The savings made by hyperscale centres can be seen in their power usage efficiency (PUE), defined as the total energy needed for everything, including lights and cooling, divided by the energy used for computing (a PUE of 1.0 would be a perfect score). Conventional data centres typically have a PUE of about 2.0; for hyperscale facilities, that’s been whittled down to about 1.2. Google, for one, boasts a PUE of 1.12 on average for all its centres.
Older or less technologically adept data centres can contain a mix of equipment that is hard to optimize — and some that is even useless. In 2017, Jonathan Koomey, a California-based consultant and leading international expert on IT, surveyed with a colleague more than 16,000 servers tucked into corporate closets and basements and found that about one-quarter of them were “zombies”, sucking up power without doing any useful work — perhaps because someone simply forgot to turn them off. “These are servers sitting around doing nothing except using electricity, and that’s outrageous,” says Koomey.”
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