California breaks ground on the nation's first bullet train.  

The Senate votes 98 to 1 that "climate change is real and not a hoax."  

Baby tortoises are sighted on the Galapagos' Pinzon Island for the first time in over 100 years. 

Scotland bans fracking. 

Polar bears move farther north in search of longer-lasting ice. 

A Montana man is fined $30,000 for killing three grizzly bears.  

The U.S. Fish & Wildlife Service will allow the killing of up to 15 grizzly bears in Wyoming in connection with an elk hunt and livestock grazing. 

President Barack Obama vetoes legislation that would have approved the Keystone XL pipeline. 

Obama proposes to sharply restrict oil drilling in Arctic waters but takes steps to allow it on the Atlantic coast from Virginia to Georgia.  

India's tiger population has increased by a third in the past four years. 

Coal prices have fallen by half since 2011 due to oversupply and reduced demand, particularly from China. 

The Fish & Wildlife Service is determining whether the monarch butterfly belongs on the endangered species list. 

Obama proposes to designate 12 million acres of the Arctic National Wildlife Refuge as wilderness. 

Sea lion pups off the California coast are starving in record numbers, apparently because warmer waters are driving their prey to deeper areas farther offshore. 

Bald eagles are nesting in New York City.