International Agreements & commitments for action By arpitakohli 2009 China overtook USA by emitting the most amount of greenhouse gases 2013 excess co2 and warming up of oceans 2014 fifth IPCC report - it was a warning as their was an increase in global warming due to burning fosils fuels etc Apr 11, 2016 treaty to limit global warming 2019 recorded the second warmest year, co2 and other greenhouse gases rose 2020 greenhouse emission decreased due to the pandemic as there was travel ban and lockdown so there were less vehicles being used.