By now, most people have heard about the trouble the environment is in. There are threats of global warming and scientists everywhere are encouraging people to do their part in preserving the planet. Preservation efforts include things like recycling plastics, limiting water usage, and carpooling, when possible. Carpooling is one of the biggest preservation acts, as the fuel and emissions that vehicles put out can be especially dangerous to the planet. Consider reducing vehicle usage in the following ways.…