2C above pre-industrial levels

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Hello everyone,

I have problems understanding a sentence in an article dealing with Global Warming and greenhouse gas emissions cuts .
The sentence is "In July, the world’s leading economies agreed to limit the increase to 2C above pre-industrial levels to avoid the worst effects of climate change".
I really don't understand what the underlined section means! Does "2C" correspond to 2 Celsius degrees? And what are pre-industrial levels??

Thanks a lot!
  • entangledbank

    Senior Member
    English - South-East England
    Yes, 2 degrees Celsius as we say in English, and it should be written 2 °C in any language. Pre-industrial levels are the levels before about 1750 when factories started putting large amounts of gases into the atmosphere.


    Senior Member
    UK English
    When it comes to writing a scientific paper, 2 °C is the recommended method.

    But in general the space is optional (2°C), and sometimes 2 C is seen.
    For example, NASA writes 2°C, as do the National Climatic Data Center and the IPCC (Intergovernmental Panel on Climate Change). The US Department of Energy would write 35.6°F (!).

    By the way, it is 2 degrees Celsius (not 2 Celsius degrees).
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