Question

What were the goals of the Kyoto Protocol and in what year will it expire?

Answer 1

It will end in 2020, though its first protocol stage ended in 2012. They extended it to make it end in 2020.

Answer 2

The Kyoto Protocol is an international treaty which extends the 1992 United Nations Framework Convention on Climate Change (UNFCCC) that commits state parties to reduce greenhouse gasemissions, based on the scientific consensus that (part one) global warming is occurring and (part two) it is extremely likely that human-made CO2 emissions have predominantly caused it.
and it ended 31 December 2012