Geo-Engineering

Leaked documents ahead of key Lima meeting suggest UN body is looking to slow emissions with technological fixes rather than talks

The UN's top climate change chief has called for technologies that soak CO2 from the atmosphere - but are such techniques feasible? Tom Young investigates

Researchers explore how biofuel generation and artificial photosynthesis could help slash CO2 emissions

Leading academic bodies set out plans for wide-ranging ocean fertilisation research

Meeting in California in March will discuss possible field trials of schemes that would tackle climate change by reflecting sunlight or fertilising the ocean with iron