Climate change is reaching disturbing new levels across the Earth
Global warming worries
People around the world are concerned
The human cost of disasters 1995-2015
In 2013, 108 countries were hit by natural disasters such as floods, earthquakes and extreme temperatures - the UK was among them.
Using weather as a weapon
A scientist fears that new climate-altering technologies could be used as weapons - he wants secret developments to be made public
Where are the world's most water-stressed cities?
More than 2.5 billion people don't have access to basic levels of fresh water for at least one month each year.