The highest court in Massachusetts has ruled that the state attorney general has the authority to investigate what the oil and gas giant knew about climate change.
As food and water sources become threatened by changing weather patterns, experts say these are the areas most susceptible to instability and bloodshed.
High above the rapidly warming Arctic Circle, the people of Clyde River are looking to nature and Inuit tradition in a bid to end the town's epidemic of despair and suicide.
The Harvard University psychologist argues humans have the capability to deal with the huge challenges we face. But will we? That's a different question.