The United States Navy celebrated Earth Day April 22 by showcasing a flight test of the “Green Hornet,” an F/A-18 Super Hornet multi-role fighter jet powered by a 50/50 blend of conventional jet fuel and camelina aviation bio-fuel.
Carbon dioxide emissions that contribute to global warming are turning the oceans more acidic at the fastest pace in hundreds of thousands of years, the U.S. National Research Council warns.
The International Whaling Commission unveiled Thursday a draft proposal to bring all whaling operations under its full control and to strengthen and focus the work of the IWC on conservation issues including a compromise proposal which will cut Japan's annual Antarctic quota by three-quarters in five years.
An oil rig in the Gulf of Mexico that caught fire after an explosion on Tuesday night has now sunk, the US Coast Guard has said. A search is continuing for 11 missing workers after the blast at the Deepwater Horizon rig. The other workers on the rig, off Louisiana, were evacuated to the US.
The Brazilian government accepted bids Tuesday to build what would be the world’s third-largest hydroelectric dam in the Amazon. Officials proceeded with the auction immediately after a judge overturned another magistrate’s injunction blocking the tender and revoking the environmental permit for the 11,000 MW Belo Monte complex.