When the earth is made warm, it warms the air just above it because they touch.

In summer, the sea ice keeps the surface from warming above freezing.

Speaking of lights, a soft green one warmed into life above the bridge's vidscreen.

Only a little ammonia would be enough to warm the Martian surface to above the freezing point of water.

"And if you can slow it down really well, the roof deck is going to take a lot longer to warm to above freezing."

Even in summer the higher slopes only warmed to a few degrees above zero.

These are the consequences that a mere 1C of warming above pre-industrial levels have wrought.

The tanks were on the sunside of the wreck and warmed above freezing point.

But when average temperatures warmed slightly above a critical threshold, the entire butterfly population would suddenly crash.

If the temperature starts to warm above this, the ice melts.