Who can tell me how to get my message across about saving lives and the planet at the same time?

My proposal for a safer planet and safety for those traveling across our highways. Government to step in and require that trees planted in the median which would add oxygen to the air as well as stop crossover crashes. Also trees are softer than cement giving a driver and pengers a change to come out alive. Plus the added benefit of no high beams blinding you to a halt. What do you think ? How do I get someone to listen and maybe enact a law for every state, that this is a must. This would also benefit the ozone. And add beauty to our highways. Even states that don't have ability to grow trees can add their plants as a cushion effect. Many more lives could be saved and a healthier environment can be achieved.