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Study warns against hyping carbon-fixing biochar

To determine whether man-made charcoal, or biochar, can significantly cut carbon levels in the atmosphere, large-scale systems need to be tested, according to an NRDC analysis.

By November 29, 2010


Mobile 'biochar' machine to work the fields

New company aims to commercialize technology that makes charcoal from woody wastes, a method to improve soil and sequester carbon from the atmosphere.

By August 25, 2009


Gates Foundation toilet contest seeks 'iPad of sanitation'

This summer, the Gates Foundation will present hygienic innovations developed through its Reinventing the Toilet Challenge.

By February 22, 2012


Biochar for carbon storage comes under fire

Some companies are developing techniques for making charcoal as a way to store carbon underground, but a group of conservationist warn against large-scale use.

By April 6, 2009


GE unit invests in biofuels producer

Cool Planet Biofuels, a start-up that converts plant waste into biofuel, scores $8 million in funding via GE joint partnership with North Bridge Venture Partners. GE gets a seat on the board.

By November 17, 2010


Researchers ask how best to engineer the planet

Time to assess different climate engineering approaches--be it injecting light-blocking particles in the atmosphere or artificial trees--say academics at an MIT symposium.

By October 31, 2009


Can charred coconut keep Maldives from submerging?

Archipelago country vulnerable to rising seas partners with U.K.-based Carbon Gold to produce biochar from coconut shells.

By September 3, 2009


Report: Geoengineering an option to limit climate change

Barring significant emissions reductions, U.K.'s national science academy sees engineering to remove greenhouse gases or absorb less solar radiation as a way to combat climate change.

By September 2, 2009


Algae-coated buildings touted as climate fix

In a report, the U.K.'s Institution of Mechanical Engineers concludes that artificial trees, algae-growing buildings, and white roofs offer the most promise.

By August 28, 2009


CNET News Daily Podcast: The Pirate Bay's death rattle

Why you shouldn't Google Jessica Biel, the details on Yahoo's latest acquisition, and a chat with CNET reporter Greg Sandoval about what's happening to The Pirate Bay.

By August 25, 2009