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A central figure in the environmental movement of the 1960s and 1970s, Brand now thinks people need to manipulate natural systems to forestall the effects of global warming.
Barring significant emissions reductions, U.K.'s national science academy sees engineering to remove greenhouse gases or absorb less solar radiation as a way to combat climate change.
In the discussion over the direction of clean energy, solar and wind figure heavily but now nuclear power is increasingly proposed as a complement to renewable energy.
Chemists invent roof shingle coating from waste oil that adapts with temperature change to reflect or absorb solar heat as needed.
Science Magazine reports that Bill Gates has spent at least $4.5 million to fund academic energy and climate research, some of which touches on the controversial topic of geoengineering.
Trying to mimic the cooling effects of volcanic eruptions by injecting sulfur into the atmosphere would badly damage the ozone layer, an NCAR study concludes.
A professor argues that it's possible to put a break on climate change by injecting sulfates above the stratosphere.
Time to assess different climate engineering approaches--be it injecting light-blocking particles in the atmosphere or artificial trees--say academics at an MIT symposium.
Shields in space, artificial volcanic eruptions, pumping carbon dioxide underground, ocean fertilization--all these "geoengineering" ideas are being discussed, says Harvard professor.
In a report, the U.K.'s Institution of Mechanical Engineers concludes that artificial trees, algae-growing buildings, and white roofs offer the most promise.