mean radiant temperature

iron at medium setting [ iron at moderate temperature | warm iron | use warm iron ]

mean temperature of air column

mean temperature of air column

mean radiant temperature

electrolysis of water under pressure at a medium temperature

mean annual air temperature | MAAT

At COP15 in Copenhagen, world leaders agreed that global average temperature should not rise more than 2°C. Today, countries representing more than 80% of global emissions have pledged domestic targets under the Copenhagen Accord and the Cancun agreements.

While the EU is on track to achieve its greenhouse gas emission reduction targets resulting from the Kyoto protocol, global CO2 emissions are today some 40% higher than they were in 1990, the Kyoto base year [17]. It is estimated that in order to limit the average global temperature increase to less than 2°C compared to pre-industrial levels, global greenhouse gas emissions must be reduced to less than 50% of 1990 levels by 2050 [18]. Successful conclusion of the international climate change negotiations in Copenhagen will be key to achieving a long-term sustainable future for our planet.

Averages mask the extremes and, while global average temperatures have increased over the last century by one degree Celsius or so, related to human-induced climate change, that is the average.

Between 2001 and 2010, global temperatures averaged almost .5°C above the average from 1961 to 1990 and were the highest ever recorded for a 10-year period since the beginning of instrumental climate records.