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Articleselectricity use and 5% of global CO2 emission—and demand for artificial light in poor countries is growing rapidly. Photovoltaic solar panels and light-emitting diodes are touted as the answer but have drawbacks and limitations. Storage phosphors are another possible solution. 20-minute read We warm our buildings in winter and cool them in summer, gushing CO2 in both cases. We refrigerate buildings and food, even though we have a deep freeze of enormous capacity just miles above our heads. Could we harvest heat or coldness and use them wherever convenient? There might be a way. 20-minute read Heating and cooling buildings puts a lot of CO2 into the air. If few people occupy those buildings, it might make sense to heat or cool the people rather than the air. Welcome to temperature-controlled clothing. 5-minute read The construction, transportation, and disposal of durable goods causes substantial global CO2 emission. Making durable goods more durable, as well as easier to locate within one’s home or business, could reduce this CO2 emission. How close are we? 10-minute read The refrigeration of food emits large amounts of CO2 into the air, but also lowers CO2 emissions by preventing food spoilage. As the world warms and populations grow, so will the need for food refrigeration. Storage of food under high pressure emits much less CO2. Here is what it may take to make such storage feasible. 10-minute read 32 pages, including references Vaccines and medicines seem unable to end the COVID pandemic. Here is a durable facemask that can be constructed from materials that are common worldwide. Welcome to the Bugeye facemask. Short summary Full construction instructions |