Which of the following statements best reflects the findings of the IPCC Special Report on Global Warming of 1.5 degrees Celsius?
To avoid global warming of 1.5°C, global net anthropogenic CO2 emissions must reach zero by around 2030.
To avoid global warming of 1.5°C, global net anthropogenic CO2 emissions must reach zero by around 2050.
To avoid global warming of 1.5°C, global net anthropogenic CO2 emissions must reach zero by around 2100.
To avoid global warming of 1.5°C, global net anthropogenic CO2 emissions must be smaller than CH4 emissions.
