Posted Friday, November 18, 2011 --- 8:00 a.m.

WASHINGTON (AP) -- Top international climate scientists and disaster experts meeting in Africa have a sharp message for the world's political leaders: Get ready for more dangerous and unpredictable weather caused by global warming.

They're calling for preparations that will save lives and money.

These experts fear that without preparedness, crazy weather extremes may overwhelm some locations, making them unlivable.

The Nobel Prize-winning Intergovernmental Panel on Climate Change issued a new special report on global warming and extreme weather Friday after meeting in Uganda. This is the first time the group of scientists has focused on the dangers of extreme weather events such as heat waves, floods, droughts and storms.

Those are more dangerous than gradual increases in the world's average temperature.

Copyright 2011. The Associated Press.