Jeff Young

After decades of overfishing and a disastrous oil spill in its spawning grounds, there are now signs of hope for the Atlantic Bluefin Tuna.

Is it high tide for tidal power? Clean energy entrepreneurs are exploring ways to turn the flow of the tides into electricity in the Bay of Fundy.

The global boom in natural gas has big implications for global warming. But scientists studying the issue are locked in a heated debate. Some say gas is a bridge to a cleaner energy future, others claim gas will just fire up more climate change.

The Regional Greenhouse Gas Initiative that covers nine northeastern states is under attack. New Jersey pulled out of the program to cap carbon emissions and other state lawmakers are pushing their states to quit, too. But an analyst says the attacks on RGGI are driven by politics, not policy.

Autopsies of a mine disaster’s victims reveal another layer of the tragedy: most of the miners had black lung, a disease many experts thought was under control years ago. This entirely preventable disease is now bouncing back.