Water has always been a tricky thing in Australia, the world′s driest inhabited continent. But global climate change is making the problem more severe.
Here′s what we know so far about hosting the Olympics: (1) It′s all about showing off your city to the world. Just think back on the coming-out party for Beijing, summer 2008. (2) It′s really, really expensive.
The USS New Orleans is the Navy's next generation. Combining the best of earlier models, it takes nine LPDs to replace a fleet!
While D.C. politicians drag their feet on global warming, D.C. baseball has stepped up to the plate. Check out the country′s first LEED-certified sports stadium, Nationals Park.