Climate change started speeding up when people started to produce co2 into the atmosphere and trapping the suns heat. Now, many people are doing things they don't know which is slowly contributing to climate change. for example cow toots are one thing that is causing climate change. Also, gas cars are also helping climate change. The middle east is a great example with many oil factories which are admitting c02 into the earth. In the middle east temperatures are raising almost two times faster than other places around the globe.
This is the middle east. Fun fact, Saudi Arabia (the big one) has no natural rivers or lakes, you can explore the map.