
A brief history of pledges to reduce GHG emissions:
2010 (blue): 14% gap in 2020 for a 2°C pathway
2020 (orange): 25% gap in 2030 for 2°C (time passed, emissions grew)
2020 (red): 55% gap in 2030 for a 1.5°C pathway (ambition raised in Paris)https://t.co/AUvpEYY1ac pic.twitter.com/61ccDZxYtH
— Glen Peters (@Peters_Glen) March 4, 2020
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