Nevertheless, there are potential ways to solve these problems, or at least reduce the effects. Firstly, governments need to reduce our dependence on fossil fuels and promote alternatives. Plant-derived plastics, biodiesel, wind power and solar power are all things that are a step in the right direction, but governments need to enforce the limits on CO2 emissions for the polluting industries in their countries for these to be effective. Also, individuals can play a part by making lifestyle changes. People should try to buy cars with the best fuel economy, and only use their car when really necessary. They can also switch to energy companies that use renewable energy rather than fossil fuels. Finally, small things like buying energy efficient light bulbs, turning off electricity in the house, and planting trees in the garden can help.