Tax pesticides for the damage they do. Use the funds to pay for any needed clean up or inspection, also perhaps to support organic foods. Organic foods are only expensive because they're small scale. When prices equalize consumers can choose for health rather than cost, and organic production should increase rapidly. Soon prices will be better than now and the environment will be healing.
Make Solar Water heaters free for Seniors, the Disabled, and the Poor. They are cheap to build and easy to install, that alone will cut the power cost for these folks by nearly 1/3rd. The savings to the gas and electricity demands would be huge. This would also create thousands and thousands of jobs and would teach great skills to the now unskilled.
Corporations should be penalized for exporting existing jobs and An increased import tariff for products that once made in this country that would equal the cost of the product to be doubled the cost if made in this country. Corporate funds hidden in off shore banks should be triple taxed. This is, after all stolen tax dollars.
Renewable Energy: support distributed generation throughout the rural electric system (where space is available) and create a series of microgrids that combine into the total nation-wide electric grid, but can disaggregate and perform independently when necessary (i.e. in intense storms or terrorist attacks). This will, also, clean up the air, make desperately needed water available to farmers & urban areas, and hold rising electric costs in check!
Transition to sustainable agriculture. Large monoculture agriculture is depleting our soil. Transfer research money to sustainable, organic agriculture. We subsidize corn which encourages the destruction of the soil. The main uses of all this corn are 1. high fructose corn syrup (tied to obesity) 2. Feed for polluting CAFO's (cows can't digest corn properly & these operations feed 80% of the antibiotics used leading to antibiotic resistant bacteria) 3. Ethanol (no net energy gain)
In order to develop and transition into clean alternative energy sources and thus protect the environment and put the brakes on global warming, all fossil fuel corporations should be required by law to invest a miniumum of 50% of their profits in developing safe green energy projects (solar and wind), for which they will receive generous tax breaks. However, they should not receive any tax breaks for generating more fossil fuels.