From the early 1800s, coal, oil and gas have been burnt, and have been releasing gases that trap heat from the sun. That's the main raison why there is now more carbon dioxide in the atmosphere than there has been for million of years.
Unfortunately, despite governments around the world are aware of planet earth's ecological limits, temperature is still going up. 🏭🚢✈
The last picture of the two donkeys has nothing to do with global warming. I took it yesterday while I was walking through the countryside. There was some grass around the fence, on the side, so I decided to feed them. 🐎🐎