Geoengineering – A Half-Century of Earth System Experimentation

23 April 2013

 - A map showing some of the most significant geoengineering projects around the world.

The U.S., Canada, the European Union, and Australia are the biggest geoengineering hotspots. Almost all the countries in Asia, South America, and the Middle East have played host to some projects.

The map uses a pretty broad view of geoengineering. Many of the projects have involved weather modification–either increasing precipitation by seeding clouds with chemicals, or reducing precipitation through a number of techniques.

Carbon sequestration using biochar (agricultural waste burned to make charcoal) that is buried in the soil is another popular technique. But others–like cultivating algae to consume CO2, whitening the Earth’s surface with “space mirrors” to redirect sunlight, and fertilizing the ocean with iron or nitrogen to sequester CO2–haven’t seen nearly as much testing.

2013-04-23 11:02:29

Source: http://www.earth-heal.com/index.php/news/news/102-geoengineering/793-geoengineering-map.html