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Latest Geoengineering Stories

2010-10-04 14:21:00

DALLAS, Oct. 4 /PRNewswire-USNewswire/ -- Like it or not, a climate change emergency is possible, and various approaches collectively called geoengineering could be the only affordable and fast-acting ways to avoid a catastrophe, according to an article in the fall Issues in Science and Technology. According to authors Ken Caldeira of the Carnegie Institution and David Keith of the University of Calgary, world leaders may at some point be compelled to act to prevent further global...

2010-09-20 22:27:03

Reflecting sunlight from the Earth by geoengineering would undoubtedly cool the climate, but would different countries agree on how much to reflect? Research by climate scientists at the University of Bristol shows that the impact of geoengineering would be felt in very different ways across the world. Previous studies of geoengineering approaches, aimed at averting dangerous climate change, have shown that although the average global temperature could be restored to 'normal' levels, some...

2010-09-16 17:45:22

Scientists at the Carnegie Institution's Department of Global Ecology have taken a new approach on examining a proposal to fix the warming planet. So-called geoengineering ideas"”large-scale projects to change the Earth's climate"”have included erecting giant mirrors in space to reflect solar radiation, injecting aerosols of sulfate into the stratosphere making a global sunshade, and much more. Past modeling of the sulfate idea looked at how the stratospheric aerosols might affect...

2010-08-24 17:13:31

Scientific findings by international research group of scientists from England, China and Denmark just published suggest that sea level will likely be 30-70 centimetres higher by 2100 than at the start of the century even if all but the most aggressive geo-engineering schemes are undertaken to mitigate the effects of global warming and greenhouse gas emissions are stringently controlled. "Rising sea levels caused by global warming are likely to affect around 150 million people living in...

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2010-08-20 09:46:37

Emissions of carbon dioxide are causing ocean acidification as well as global warming. Scientists have previously used computer simulations to quantify how curbing of carbon dioxide emissions would mitigate climate impacts. New computer simulations have now examined the likely effects of mitigation scenarios on ocean acidification trends. They show that both the peak year of emissions and post-peak reduction rates influence how much ocean acidity increases by 2100. Changes in ocean pH over...

2010-06-29 10:47:00

DALLAS, June 29 /PRNewswire-USNewswire/ -- Alarming media reports have raised concern about U.S. dependence on foreign sources of rare minerals that are critically important in military applications and emerging industries. But there is no need to panic, according to an article in the Summer 2010 Issues in Science and Technology. Although there is cause for concern about the supply of critical minerals, there are a number of steps that policymakers and industrial consumers can take to head...

2010-06-29 02:39:56

The idea to sequester carbon is gaining support as a way to avoid global warming. For example, the European Union plans to invest billions of Euros within the next ten years to develop carbon capture and storage whereby CO2 will be extracted at power plants and other combustion sites and stored underground. But how effective is this procedure and what are the long-term consequences of leakage for the oceans and climate? A Niels Bohr Institute researcher has now cast light upon these issues....

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2010-06-28 14:10:20

One proposed emergency fix to halt global warming is to seed clouds over the ocean to make them more reflective, reducing the solar radiation absorbed by the Earth. But the scheme could also change global rainfall patterns, raising concerns of water shortages on land. A new study by the Carnegie Institution, in collaboration with the Indian Institute of Science, suggests that altered atmospheric circulation under the scheme in fact could increase monsoonal rains and cause the continents to...

2010-06-02 20:39:26

Airplanes, ground instruments, and weather balloons to study effect of airborne particles on climate More than 60 scientists from a dozen institutions have converged on this urban area to study how tiny particles called aerosols affect the climate. Sending airplanes and weather balloons outfitted with instruments up in the air, the team will be sampling aerosols in the Sacramento Valley from June 2-28. Researchers from the Department of Energy's Pacific Northwest National Laboratory in...

2010-04-21 06:00:00

PHOENIX, April 21 /PRNewswire-USNewswire/ -- Jeff Goodell, investigative journalist and author of "How to Cool the Planet," will headline the Donald W. Reynolds National Center for Business Journalism's "Covering the Green Economy" seminar June 28-30 in Phoenix. This specialized reporting institute on the intersection between business and the environment is available to 20 journalists, who will receive all-expenses-paid fellowships. The deadline to apply for a fellowship is April 26. The...


Latest Geoengineering Reference Libraries

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2004-10-19 04:45:44

Terraforming -- Terraforming (literally, "Earth-shaping") is the process of modifying a planet, moon or other body to a more habitable atmosphere, temperature or ecology. The term was first used in a science fiction novel, 'Seetee Shock' (1940?) by Jack Williamson, but the actual concept is older than that. An example in fiction is 'First and Last Men' by Olaf Stapledon in which Venus is modified, after a long and destructive war with the original inhabitants, who naturally object to the...

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Word of the Day
grass-comber
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'