fossil fuels
It's not good news.
'UCL, UCL, don't put us in climate hell.'
"I think people are going to tell me we're crazy."
Researchers say the only way to reduce warming to a safe level is to close many coal, gas and oil extractions earlier than planned.
Can we all move to Costa Rica?
The country produced 106% of its daily requirement.
'We don't have answers for trucks, but we do for cars'