The Earth has been much hotter and much colder than it is now.

BBC: Looking for the greenhouse signal

International astronomers suspect it is a bare, icy, rocky world, much colder than the Earth and 13 times its mass.

BBC: NEWS | Science/Nature | Planet hunters find 'super-Earth'

Winds have been strong, in some cases blowing more than 70 kph (43 mph), which makes the wind chill much colder than the air temperature.

CNN: STORY HIGHLIGHTS

For example, every dollar of GDP generated in Chile's capital, Santiago, requires 60% more energy than a dollar of GDP generated in (much colder) Helsinki in Finland.

ECONOMIST: Productivity in Latin America

It is even much, much colder than in the Arctic!

UN: Secretary-General

The wind has also been particularly strong, in some cases over 70 kilometers per hour (43 miles per hour), which makes the wind chill much colder than the air temperature.

CNN: STORY HIGHLIGHTS

Every 20 to 30 years, the much colder water near the bottom of the oceans cycles up to the top, where it has a slight cooling effect on global temperatures until the sun warms that water.

FORBES: To The Horror Of Global Warming Alarmists, Global Cooling Is Here

It'd be much colder?

BBC: Newsbeat

Large fluctuations from warm to cold winters have been the rule for the U.S., as one can see from records kept by the National Ocean and Atmospheric Administration, NOAA. For example, the winters of 1932 and 1934 were as warm as or warmer than the 2011-2012 one and the winter of 1936 was much colder.

WSJ: William Happer: Global Warming Models Are Wrong Again