51 billion tonnes of CO2 emissions: where do they come from?
Our civilization is built entirely on coal, oil and gas. In the past 220 years, our species has spewed over 1.6 trillion tonnes of carbon dioxide into the atmosphere and oceans, potentially wrecking our climate in the process. In the next 30 years, we are going to have to engineer a future without fossil fuels. Engineering that transition is perhaps the biggest challenge our species has ever faced.Learn more