Describe what has happened to global average temperatures over the past 200 years?

Global average temperatures have risen increasingly over the past 200 years.

Explanation:

It has risen 0.7 degrees Celsius in the past century alone, which is 10x the average it's supposed too! Meaning 1.4 degrees Celsius has risen over the past 200 years (meaning it has risen 34.52 degrees Farrehnheit!!)

Hope i helped! :)

The temperatures have been increasing because of harmful gases that warm up the temperature