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Geoengineering: A whiter sky

Researchers found that blocking 2% of the sun's light would make the sky three-to-five times brighter and whiter, while increasing global photosynthetic activity could pull more carbon dioxide out of the atmosphere. However, this method may also reduce the effectiveness of solar power.

SourceCarnegie Institution for Science·JournalGeophysical Research Letters·DateMay 31, 2012

Survey finds public support for geoengineering research

A new survey reveals that 72% of respondents approve research into climate-manipulating technique, with broad public awareness and surprisingly diverse political views. The study suggests that dialogue surrounding SRM needs to be broadened to include ideas of risk, values, and trade-offs.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateOct 23, 2011

What impact would sun dimming have on Earth's weather?

A new study explores the impact of sun dimming on atmospheric teleconnections, which are crucial for predicting weather regimes. The research suggests that a dimmed sun could alter the link between tropical temperatures and extra-tropical circulation, potentially affecting prevailing weather patterns.

SourceWiley·JournalAtmospheric Science Letters·DateJan 24, 2011

Time to lift the geoengineering taboo

Experts Peter Cox and Hazel Jeffrey examine potential geoengineering initiatives, including carbon-dioxide removal and solar-radiation management, as a crucial alternative to common mitigation methods. The schemes have different benefits, costs, and risks associated, but may offer a better benefit-to-cost ratio than conventional methods.

SourceIOP Publishing·JournalPhysics World·DateSep 1, 2009

Global sunscreen won't save corals

A new study found that geoengineering solutions to counter global warming would have a minimal impact on ocean acidification, which threatens coral reefs and marine life. Reducing carbon dioxide emissions is considered a more effective safeguard against climate change.

SourceCarnegie Institution for Science·JournalGeophysical Research Letters·DateJun 16, 2009

Deep magma matters in volcanic eruption cycle

A team of researchers found that magma is continuously supplied from deep in the crust but a valve acts below a shallower magma chamber, releasing lava to the surface periodically. The upper reservoir is open and the lower reservoir refills at half the rate it was lost during lulls in eruption.

SourcePenn State·JournalScience·DateOct 9, 2008

Stratospheric injections to counter global warming could damage ozone layer

New research suggests that injecting sulfate particles into the stratosphere to cool the planet would have a drastic impact on the ozone layer. The study finds that such an approach might delay the recovery of the Antarctic ozone hole by decades and cause significant ozone loss over the Arctic.