Emissions of greenhouse gases warm the planet, altering the carbon and water cycles. A warmer ocean stores more heat, providing more fuel for hurricanes. A warmer atmosphere holds more water, bringing dangerous deluges. Rising sea levels threaten coastal zones.
Johan Rockstrom
![Cycling helps reduce Greenhouse Gases Emission](https://chechewinnie.com/wp-content/uploads/2019/05/Cycling-helps-reduce-Greenhouse-Gases-Emission.jpg)