Wie hängen sie zusammen

Not only core samples and fossilized leaves help us understand the climate of the past. Ice cores and the gas bubbles trapped within them show us how much atmospheric CO₂ levels have increased over the past million years. The documentary AN INCONVENIENT TRUTH makes anthropogenic climate change tangible: CO₂ rise, melting poles, species extinction. The climate is changing, and we are both the cause and affected by it.