Global carbon emissions will rebound in 2021 after an unprecedented fall in 2020 due to the pandemic, potentially putting the world out of reach of overall climate goals, the International Energy Agency says.

The next decade is a make-or-break moment for governments to address rising emissions, the IEA says in its latest World Energy Outlook released Tuesday. How aggressively governments promote shifts to cleaner energy will essentially determine whether or not the world has a chance of limiting warming temperatures to 1.5 degrees Celsius, the more ambitious of the Paris climate agreement’s targets, the report says.