Through international treaty, governments representing almost all of the world's people have agreed: To avoid dangerous anthropogenic influence on...

Through international treaty, governments representing almost all of the world's people have agreed:

To avoid dangerous anthropogenic influence on the climate system.

To avoid warming of more than 1oC.

To avoid warming of more than 2oC.

To avoid warming of more than 3oC.

To avoid any anthropogenic influence on the climate system that worries some scientists.