- There are only three questions remaining about the climate crisis: “Must we change?” “Can we change?” and “Will we change?”
- The sky is not a vast and limitless expanse the way it appears to us as we stand on the ground and look up.
- In reality, there is just a thin shell of atmosphere surrounding the planet.
- We are putting 110 million tons of man-made global warming pollution into the atmosphere every single day.
- That pollution—especially carbon dioxide (CO2) is building up and it’s trapping heat.
- We have been “thickening” the atmosphere by filling it with heat-trapping pollution. More heat energy is trapped, and it is warming our planet at an unprecedented rate.
- There are many sources of man-made global warming pollution: agricultural practices, forest burning, transportation, and many other factors.
- But the main source and cause of the rising global temperatures we are seeing today is the burning of fossil fuels.
- Fossil fuels still provide more than 80% of the world’s energy. Their use— and emissions—has gone up dramatically since World War II.