Global temperatures are rising primarily due to human activities. A changing climate threatens our water supplies, our health and global security.
47% of the world's people will live under high water stress by 2030. Water insecurity undermines health, perpetuates poverty and threatens economic growth.
Humans and animals increasingly share virulent viruses due to loss of green belts, global warming and poverty, raising the risk of highly disruptive pandemics.
Nine countries control 17,300 nuclear weapons. More aspire to join the club. Accidental or deliberate use of nuclear weapons is a grave threat to humanity.
Global energy supplies, religious and sectarian divisions and Israeli-Palestinian conflict all converge in the Middle East. Political volatility there has global implications.