There are many things you can do as an individual to make a change. First of all, you can choose to support ecofriendly companies by purchasing necessities from those companies instead of large companies that are usually less ecofriendly. Furthermore, you can educate yourself and your friends so that people can become more aware of how pressing an issue this is.
Another way to make an impact is by choosing to buy appliances that save energy or water, and using devices for as little time as possible to conserve energy or water. An example would be buying a hybrid car that does not only use gas for power. Riding a bike or walking instead of driving is also a very good way to use less fossil fuels. Furthermore, eating less meat or even becoming vegetarian is beneficial because the meat industry produces a large amount of fossil fuels and pollutes land.