Australia's newly proposed carbon tax would be one of the most ambitious carbon plans outside of the European Union. But with the world's biggest polluters unwilling to cap their greenhouse gas emissions, many Australians are rallying against the proposed tax.

The Wallow Fire is Arizona's largest fire ever. But a new business venture could help pay to protect other forests in the Western U.S.

Critics say a new report proves that politics trumped economics in the Nuclear Regulatory Commission's decision over the dumping site at Yucca Mountain.

Following the disaster at Japan's Fukushima nuclear plant, many countries reconsidered their stance on the safety of nuclear energy. Today, Germany announced plans plans to abandon nuclear energy altogether in the next 11 years. But without nuclear technology, will Germany be able to produce green energy?