As climate warmed they either traveled north or became extinct.

The point isn't the starting date, it's that the global climate hasn't warmed for a period of years.

"We have good evidence that the climate is warming in Alaska," she says.

When the larger game animals died out, and the climate warmed, they had to adapt.

As the climate warmed at the end of each ice age, great successional changes took place.

Several hundred years later, the climate of Minnesota warmed significantly.

About 14,000 years ago, as the climate warmed, the glacier began to retreat.

The climate is warming for small businesses in America.

When the climate warmed and the glaciers retreated, people moved back north.

In fact the climate has warmed by 1 degree.