# Climate News: Geo-engineering, Soot and Deforestation

*Published:* 2007-06-11
*Author:* Lisa Moore

*Guest blogger [Lisa Moore](http://www.environmentaldefense.org/page.cfm?tagID=404), Ph.D., is a scientist in the Climate and Air Program.*

There’s always something new in climate change research. This week, scientists described the risks of geo-engineering, proposed an efficient way to reduce Arctic climate change, and discussed options for decreasing deforestation in developing countries.

- Matthews, HD & K Caldeira (2007) [Transient climate-carbon simulations of planetary geoengineering](http://www.pnas.org/cgi/content/abstract/0700419104v1). *Proceedings of the National Academy of Sciences*, 10.1073/pnas.0700419104
- Using geo-engineering to reduce the amount of sunlight reaching the Earth’s surface is extremely dangerous. A large, rapid "warming rebound" could result if the technology fails or is stopped, especially if there are no parallel efforts to reduce greenhouse gas emissions. (For more on geo-engineering, see [this earlier post](https://blogs.edf.org/climate411/2007/04/05/geo-engineering/).)

- Reddy, MS & O Boucher (2007) [Climate impact of black carbon emitted from energy consumption in the world’s regions](http://www.agu.org/pubs/crossref/2007/2006GL028904.shtml). *Geophysical Research Letters* 34: L11802.
- Most of the black carbon (soot) that is causing rapid warming in the Arctic comes from Europe, so reducing black carbon emissions in Europe would be a fast and efficient way to slow Arctic climate change.

- B Schlamadinger & DN Bird, editors (June 2004) Special Issue: [Options for including agriculture and forestry activities in a post-2012 international climate agreement](http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%236198%232007%23999899995%23659367%23FLA%23&_cdi=6198&_pubType=J&view=c&_auth=y&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=42f15d01904111d06e2f79ecd8f7b458). *Environmental Science and Policy* 10 (4): 269-394. (Paid subscription required)
- This special issue reports the results of a workshop in which participants discussed policy options for decreasing greenhouse gas emissions from deforestation in developing countries. More information is available on [this website](http://www.joanneum.at/carboinvent/post2012workshop.php).