Initiative sponsored by Carnegie Council and led by UN climate veteran aims to break silence around geo-technologies and explore their potential
Draft documents suggest countries will agree to further ban on large-scale climate techno-fixes, warning risks of damage to biodiversity outweigh potential benefits
NEWS: Fertilising algae with iron filings is no easy climate fix, study finds, as benefits in one region will be offset elsewhere
NEWS: ‘Irresponsible’ to rely on techniques to strip carbon or reflect sunlight to slow global warming, EU analysis concludes
NEWS: Iron fertilisation of oceans stimulates carbon sucking plankton, but could also lead to rise in CO2 emitting sea-life
ANALYSIS: Scientists, artists and policymakers pondered whether to hack the planet at a meeting in Berlin this week
Scientists are increasingly looking to more radical schemes to curb global warming, but the more radical proposals are not liked by the general public
Thursday’s top 5: World may need to suck CO2 out of air, China becomes one of world’s largest historical emitters, senators push for Keystone approval
Idea that we can address global warming by engineering the atmosphere rebuffed by scientists in USA and Germany
Morning summary: Abbott to stop Clean Energy Finance Corporation; women leaders tells Obama to scrap Keystone; and animals need to be genetically modified
Guardian: Russian government is asking for ‘planet hacking’ to be included in the climate science report, leaked documents show
Morning summary: Climate change minister Greg Barker calls for ‘new generation of energy entrepreneurs’ to help cut bills and make sector greener
The world’s coral reefs are under threat. Some scientists say doses of cloud brightening could provide a solution to the problem.
Geoengineering the world out of dangerous climate change without cutting carbon emissions sounds an attractive idea – but will it work?
Attempts to tackle climate change by altering the atmosphere could even trigger disaster in a drought-prone region of Africa, a study suggests
Even if the science brought about a quick fix for climate change, political and ethical obstacles could be hard to overcome