Researchers at the University of Cambridge have built a solar-powered reactor that converts atmospheric carbon dioxide (CO2) into a gas that could one day fuel vehicles, power off-the-grid ...

it recently replaced CFC-12 as the third most important anthropogenic greenhouse gas after carbon dioxide and methane 4. This is but one of many apparent links between the two protocols ...

Methane, or CH4, is the second most important greenhouse gas linked to human activity after CO2. Around 40 per cent of methane comes from natural sources. About 60 per cent is linked to human ...