Thawing permafrost has released so much methane into Esieh Lake near Fairbanks, Alaska that the air above it is flammable. Credit: Katey Walter Anthony/ University of Alaska Fairbanks ...

Prior to this discovery, the largest underground thermal lake title belonged to a site in Hungary, below Turkish baths in the ...

The House has authorized a new type of state preserve to protect the 14 historic shipwrecks and one crashed airplane located in Indiana's portion of Lake Michigan.