Attempts to limit climate change by using the novel technologies known as geo-engineering are very unlikely to work, leading biologists say.
While the “future dramatic removal of huge volumes of carbon dioxide from the atmosphere” could restore greenhouse gas concentrations to pre-industrial levels, the world’s oceans would “stay warmer, and more acidic, for thousands of years, and the consequences for marine life could be catastrophic” unless the burning of fossil fuels is stopped, a team of German researchers warns.
Reducing the bleaching of corals by blocking the sun’s rays might buy time to keep tropical reefs alive if efforts are increased to halt global warming.
American scientists say they are making progress with carbon capture and storage, a process that would help render harmless the chief greenhouse gas.
Resorting to geoengineering to tackle climate change would be an admission of failure, UK scientists say.
Limiting climate change simply by cutting the use of fossil fuels is a much better option than ambitious bioengineering projects such as trying to limit the effects of the sun, researchers have found.
Using technology to reflect sunlight away from the Earth to reduce global warming could be disastrous, scientists say, because the aftermath could be even more severe heat.
Research in Australia and New Zealand finds little appetite among the public for trying geo-engineering techniques to prevent global warming.
The beguiling idea that global warming can be moderated by engineering the atmosphere has been given a rebuff by two scientists who found the attempt could disrupt rainfall patterns.
The world’s coral reefs are under threat. Some scientists say doses of cloud brightening could solve the problem.