Question

How much has the global temperature risen since 1880?

Answer 1

Answer:

The global average and combined land and ocean surface temperature, show a warming of 0.85 [0.65 to 1.06] °C, in the period 1880 to 2012, based on multiple independently produced datasets. This gives a trend of 0.064 ± 0.015 °C per decade over that period.