As climate change strengthens, geoengineering ideas - such as shooting reflective particles into the atmosphere or capturing emissions and pumping them underground - are increasingly being considered. Are they a threat - or a good idea?

As climate risks rise, scientists urge rules on solar engineering Laurie Goering
Taking back carbon 'imperative' to stop planet overheating Laurie Goering
Rules to govern sun-dimming technology "urgently" needed - expert Laurie Goering
Developing nations to study ways to dim sunshine, slow warming Reuters
Carbon-sucking technologies unlikely to hold climate line Laurie Goering
Chemical sunshade to slow warming may not be feasible - UN draft Reuters
Artificially cooling planet may pose threat to plants, animals  Alex Whiting
Poor nations need say in use of climate geoengineering -researcher Zoe Tabary
Can carbon-sucking technologies hold back climate change? Laurie Goering
As Congress debates geoengineering, emissions cuts must come first Janos Pasztor
As scientists ponder "hacking the climate", poor countries wary Anna Pujol-Mazzini
Carbon-sucking technology needed by 2030s, scientists warn Laurie Goering
From thin air to stone - greenhouse gas test starts in Iceland Alister Doyle
Scientists dim sunlight, suck up carbon dioxide to cool planet Alister Doyle
Reversing climate change with plantations unrealistic - scientists Laurie Goering
Climate change could cross key threshold in a decade - scientists Laurie Goering
China sets "artificial weather" target to combat water shortages Reuters
Geoengineering rules needed sooner rather than later Clive Hamilton
Scientists warn geoengineering may disrupt rainfall Reuters
Geo-engineering wins scant enthusiasm at UN climate talks Reuters
'Chemotherapy for the planet' eyed as emissions surge Laurie Goering
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