1.   Almost all of the cheapest opportunities for reducing emissions of gases that are warming the atmosphere lie outside North America, Western Europe and Japan.

2.   Efforts to warm the atmosphere vary from place to place.

3.   Growing forests help absorb the gases that warm the atmosphere.

4.   It helped that he could get up and walk around the small studio space, with a Christmas tree in the background to warm the atmosphere.

5.   It produces minuscule bright particles, known as sulphate aerosol, which reflect sunlight back into space before it has a chance to warm the atmosphere.

6.   The United States and the Soviet Union enjoyed cultural exchanges throughout the Cold War but they did little to warm the atmosphere.

7.   The United States and the Soviet Union enjoyed cultural exchanges throughout the Cold War but this did little to warm the atmosphere.

8.   The thunderstorms give off heat that warms the atmosphere.

9.   While carbon dioxide warms the atmosphere, sulfur dioxide cools it.

10.   Baker noted that clouds are among the least understood factors, with some types tending to warm the atmosphere, others to cool it.