Increased Interest in ‘Artificial Trees’ for Removal of Carbon from Atmosphere
Many climate scientists calculate that the world has only a few decades to reduce emissions before there is so much carbon dioxide in the atmosphere that a dangerous rise in global temperature is inevitable. The authors of this report say that geo-engineering of the type they propose should be used on a short-term basis to buy the world time, but in the long term it is vital to reduce emissions.
William H. Calvin: Putting the CO₂ Genie Back in the Bottle
This presentation by Dr. Calvin was made at the University of Victoria BC on June 18th. The event was sponsored by the BC Chapter of the Sierra Club of Canada. Dr. Calvin is introduced by Dr. Colin Campbell, Science Advisor to the Sierra Club of BC. At the end of the five minute introduction, click [...]
Global Warming May Necessitate Carbon Dioxide Scrubbers
Advocates say that while large-scale air capture projects might be a long time away, their economics aren’t as bad as everyone assumes. Roger Pielke Jr., a political scientist who studies energy and climate policy at the University of Colorado, conducted a recent study that found that stabilizing greenhouse gas concentrations with air capture using today’s technologies could about equal the costs projected by the IPCC of other ways to deal with warming.
Controlling Climate Change with Geo-Engineering
“Geo-engineering is not a solution,” says Prof Launder, “but it could give the world a chance to come to its senses. In 50 years we’ll have carbon-free energy schemes in place, but we need a solution that can be put into place shortly, and will gain us breathing space.”
Hansen et al: We must phase-out coal emissions by 2030 and stabilize at or below 350 ppm
Editor’s note: This article is from the blog of Joseph Romm, author of Hell and High Water. The comments posted there always make for interesting reading. Please click Climate Progress to visit this site. We will not always agree with all we read there, but we feel it is important to recognize all sides of the debate on the urgent necessity to remove excess [...]
“Geo-Engineering” Schemes Investigated by Royal Society
Climate damage science studied By Pallab Ghosh Science correspondent, BBC News http://news.bbc.co.uk/2/hi/science/nature/7698805.stm The UK’s Royal Society is to investigate whether ambitious engineering schemes could reduce the impact of global warming. Several “geo-engineering” schemes have been proposed including putting mirrors into space and iron filings in oceans. The society says these must be properly [...]
