Could climate change cause the next refugee crisis? Extreme weather events are making many areas of the world bad places to live and work.
Earth records its hottest day ever — twice

Glossary
Climate change - Long-term shifts in temperatures and weather patterns. Human action is a major cause of climate change.
Global warming - The Earth is getting hotter due to climate change.
Extreme - Very great, or beyond what is expected.
Crops - Plants that are grown on a large scale by farmers, such as vegetables, fruits and wheat.
Refugees - Anyone fleeing conflict or persecution is defined as a refugee by the UN as a refugee, regardless of where they are from.
Poverty - The state of being very poor.