YouTube: Climate Change Mitigation: Near Term Solutions 27m34s (Isaac Arthur)

Just as an example, even something as small as switching to a type of lawn grass that was lighter or darker to cover 1% of Earth’s surface, so that it reflected or absorbed just 1% more sunlight, would result in the Earth absorbing or reflecting away about 1/10,000th more light than now. It sounds small, but that is 20 terawatts of energy, which for comparison is 10 times humanity’s total power consumption and parallel to the rate of heat energy released by a powerful hurricane.