In the biosphere carbon is stored as

Carbon is stored in the biosphere within living or recently dead plants, animals and microorganisms in the ocean and on land. Forests contain 86 percent of the planet's carbon on top of the ground. This biomass is released into the carbon cycle through natural decomposition and respiration.

We can use solar powered cars or ride bikes instead of cars that burn fossil fuels

Nine months old i think but i’m not that sure