See also stories tagged with Geoengineering
At one time, astronomers believed the surface of Mars was crisscrossed by canal systems. This in turn gave rise to speculation that Mars was very much like Earth, capable of supporting life and home to a native civilization. ...
Well-understood physical and chemical processes can easily explain the alleged evidence of a secret, large-scale atmospheric spraying program, commonly referred to as "chemtrails" or "covert geoengineering," concludes a new ...
Planetary-scale engineering schemes designed to cool Earth's surface and lessen the impact of global heating are potentially dangerous and should be blocked by governments, more than 60 policy experts and scientists said ...
US and European scientists have called off a controversial balloon test flight that was to take place in Sweden's far north in June, part of a disputed solar geoengineering experiment to artificially cool the planet.
A program to reduce Earth's heat capture by injecting aerosols into the atmosphere from high-altitude aircraft is possible, inexpensive, and would be unlikely to remain secret.
A trio of researchers, two with Pacific Northwest National Laboratory and the other the California Institute of Technology, developed computer simulations suggesting that using geoengineering to cool the planet would not ...
At the end of the last Ice Age, as the world began to warm, a swath of the North Pacific Ocean came to life. During a brief pulse of biological productivity 14,000 years ago, this stretch of the sea teemed with phytoplankton, ...
What caused the largest glaciation event in Earth's history, known as 'snowball Earth'?Geologists and climate scientists have been searching for the answer for years but the root cause of the phenomenon remains elusive.
As a new year approaches, the University of Notre Dame's John J. Reilly Center for Science, Technology and Values has released its annual list of emerging ethical dilemmas and policy issues in science and technology for 2014.
One of the most worrisome aspects of climate change is the role played by positive feedback mechanisms. In addition to global temperatures rising because of increased carbon dioxide and greenhouse gas emissions, there is ...
