White House is pushing ahead research to cool Earth by reflecting back sunlight The White House is coordinating a five-year research plan to study ways of modifying the amount of sunlight that reaches the earth to temper the effects of global warming, a process sometimes called solar geoengineering or sunlight reflection. The research plan will assess climate interventions, including spraying aerosols into the stratosphere to reflect sunlight back into space, and should include goals for research, what’s necessary to analyze the atmosphere, and what impact these kinds of climate interventions may have on Earth, according to the White House’s Office of Science and Technology Policy. Congress directed the research plan be produced in its spending plan for 2022, which President Joe Biden signed in March.
Bad Hair Day: Are Aerosols Still Bad for the Ozone Layer? As a result, consumer aerosol products made in the U.S. have not contained ozone-depleting chemicals—also known as chlorofluorocarbons (CFCs)—since the late 1970s, first because companies voluntary eliminated them, and later because of federal regulations. Clean Air Act and U.S. Environmental Protection Agency (EPA) regulations further restricted the use of CFCs for non-consumer products. All consumer and most other aerosol products made or sold in the U.S. now use propellants—such as hydrocarbons and compressed gases like nitrous oxide—that do not deplete the ozone layer. Aerosol spray cans produced in some other countries might still utilize CFCs, but they cannot legally be sold in the U.S.
I read somewhere they were considering a big shade that could be deployed in space to cut down on the sunlight the earth receives.
We should do it like the Dolphins did when they rebuild Hard Rock. Shade the home team and fry the visiting team. Take that Russia and China!
We used to use halon as a fire suppressant in areas where there was electrical equipment. 1301 (bromotrifluromethane)was the most popular then 1211. Its been phased out or being phased out in the US due its effect on the atmosphere. It’s the best extinguishing agent I’ve ever witnessed tested. A blast from the past. When I taught at the fire academy I would take a glass bowl similar in shape and size of a cigarette ashtray, pour a small amount of gasoline in it and light it. I would extinguish the flame with a small household halon 1301 extinguisher. I would then have a student come up and try to relight the gasoline. It wouldn’t relight.
