Question

if current policies for worldwide emissions reduction continue, what is the predicted amount of global warming over preindustrial levels by 2100? (\boldsymbol{circ}) 2.5 °c (\boldsymbol{circ}) 3.5 °c (\boldsymbol{circ}) 1.7 °c (\boldsymbol{circ}) 2 °c

Explanation:

To determine the predicted global warming by 2100 under current emissions reduction policies, we refer to climate science research and projections. Current policy - based projections typically indicate a warming of around 2.5 °C above pre - industrial levels by 2100. The other options (3.5 °C is a higher - end scenario without sufficient policy action, 1.7 °C is lower than current policy - based projections, and 2 °C is a target rather than the current policy - based projection) do not match the scientific consensus for current policy - driven projections.

Answer:

A. 2.5 °C