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Scared by global warming? In Iceland, one solution is petrifying
Planned Harvard balloon test stirs solar geoengineering unease
Proposed U.S. plant to pull CO2 from thin air, use it to pump oil
U.S. push to capture carbon fuses green and fossil-fuel interests
Do 'mechanical trees' offer an option to curb climate change?
Governments seek U.N. scrutiny of technologies to cool climate
Proposal for UN to study climate-cooling technologies rejected
Scientists weigh up stratospheric sunlight barrier to curb warming
As climate risks rise, scientists urge rules on solar engineering
Taking back carbon 'imperative' to stop planet overheating
Rules to govern sun-dimming technology "urgently" needed - expert
Developing nations to study ways to dim sunshine, slow warming
Carbon-sucking technologies unlikely to hold climate line
Chemical sunshade to slow warming may not be feasible - UN draft
Artificially cooling planet may pose threat to plants, animals
Poor nations need say in use of climate geoengineering -researcher
Can carbon-sucking technologies hold back climate change?
Opinion
As Congress debates geoengineering, emissions cuts must come first
As scientists ponder "hacking the climate", poor countries wary
Carbon-sucking technology needed by 2030s, scientists warn
From thin air to stone - greenhouse gas test starts in Iceland
Scientists dim sunlight, suck up carbon dioxide to cool planet
Reversing climate change with plantations unrealistic - scientists
Climate change could cross key threshold in a decade - scientists
China sets "artificial weather" target to combat water shortages
Opinion
Geoengineering rules needed sooner rather than later
Scientists warn geoengineering may disrupt rainfall
Geo-engineering wins scant enthusiasm at UN climate talks
'Chemotherapy for the planet' eyed as emissions surge
