Spraying reflective particles into the atmosphere to reflect sunlight and then stopping it could exacerbate the problem of climate change, according to new research by atmospheric scientists at the University of Washington.
A project pitched to locals as a way to boost salmon stocks was in fact a major geoengineering effort that breaches UN rules, it's been claimed.
Injecting material into the stratosphere to reduce global warming may or may not be a good idea - but it is both possible and cost-effective, according to a thorough cost analysis.
Some scientists advocate pumping aerosols into the atmosphere to counter global warming by reflecting solar energy away.
One suggested method of countering man-made climate change, injecting sulfate particles into the stratosphere, could carry serious consequences, say scientists.
A long-hypothesized particle which could cool the planet by cleaning up the atmosphere has finally been discovered.
Most people believe that it's worth investing in geoengineering research, a new study has found.
Leading experts on climate change science and technology are calling on the federal government to launch a coordinated investigation of the potential effectiveness, feasibility, and consequences of so-called geoengineering.
A team of British scientists is to build what amounts to an artificial volcano, pumping sulphate particles into the atmosphere.
Yesterday, 125 international and national organizations hit out at proposals from the Intergovernmental Panel on Climate Change (IPCC) that geoengineering projects could be the answer to climate change.
ESA scientists reckon they've explained a mysterious high-altitude layer of sulphur dioxide discovered by Venus Express - and it provides a stark warning for geoengineers suggesting seeding Earth's atmosphere with sulphur droplets to combat climate change.
Seeding the oceans with iron to combat global warming might be ineffective as well as risky, it seems.
It's so obvious, it's a wonder nobody thought of it before: releasing vast quantities of sulphuric acid into the atmosphere to save - yes, save - the planet.
Tackling sea level rises though geoengineering won't work, and would impose enormous risks on future generations, according to an international research team.
A report that Bill Gates plans to fund the world's largest geoengineering project to date has drawn fire from environmental groups.