On Tuesday, G8 leaders in Japan made an agreement that sounds great – by 2050, they’ll cut the number of worldwide greenhouse gas emissions by half. It’s an improvement to Kyoto Protocol, at least, which the United States refused to adopt (and refused to apologize about). But developing nations, including China and India, were quick to criticize the accord, insisting that the G8 cut their emissions by more than 80 percent.

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As California returns to requiring automakers to sell zero-emissions vehicles, BMW is apparently aiming to get in first on the gold rush. Automotive News reports BMW will export an electric version of its Mini to California. The state's zero-emissions vehicle program will require nearly 60,000 plug-in cars to be sold in the state between 2012 and 2014.

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A new system for mapping carbon dioxide emissions in the U.S. will help regulators figure out exactly where these emissions are coming from and how best to reduce them. Among human-produced gases that contribute to climate change, carbon dioxide is public enemy number one.

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For a closer look at the Honda FCX, click 'View Photo Gallery.' And for a rare Q&A with Honda's president and CEO, continue reading on the second page.

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