CO2 Increase

CO₂ in our atmosphere is still increasing. Last year the annual average amount has passed 400 ppmv (part per million by volume) for the first time in a long time — at least a million years.

The reason: we’re burning fossil fuels like oil, coal, natural gas. When we do, it turns that long-buied carbon into carbon dioxide, which ends up in the atmosphere. It’s as simple as that.