If the earth is to stay below a 2 degree Celsius rise in global temperature, what is the maximum carbon dioxide ppm value that cannot be exceeded?

Question

Quizplus · Accepted Answer

To limit global warming to below 2 degrees Celsius, carbon dioxide levels must stay below 450 parts per million (ppm). This threshold is based on climate models and international agreements aimed at preventing the most severe impacts of climate change.

If the Earth Is to Stay Below a 2 Degree