The risks of geoengineering could outweigh the benefits in fighting climate change
TECHNOLOGICAL FIX Geoengineering concepts, such as blocking out sunlight, could in theory cut the cost and time needed to counteract climate change
UNKNOWN RISKS Proposed schemes do not address the underlying causes of climate change and their risks are poorly understood
KEY QUOTE Let’s do the homework on this and then put it in a box and hope we never have to smash the glass and reach in ...
The EU and the US should look more closely at what China is doing to further the clean energy transition, rather than caricaturing the country as a climate villain, says Luke Sherlock senior advisor to C40 Cities
Much as in the energy transition debate, the big question is who pays for carbon removal
The European Union is deciding which technologies and projects should have access to crucial funding. Carbon capture and storage (CCS) technology has its issues but some lawmakers and industries believe emission reduction targets cannot be met without it
Offsetting emissions is fraught with problems and critics fear these programmes could distract from the real goal of keeping fossil fuels in the ground
Development of sustainable buildings is moving fast, pushing them to being energy producers rather than energy consumers. One example is UN City in Denmark
Collecting and mining data lies at the heart of making cities smarter and cleaner places to live. Copenhagen’s Street Lab is a living demonstration of the latest technology at work
Farming in the desert might seem a bit optimistic. An Australian greenhouse uses concentrated solar power to produce energy and become independent of fresh water supplies. The result is 17,000 tons of tomatoes a year.