From my perspective: You as an "eternal" soul will incarnate into this particular string of reality that will have some broad themes that are being played out. Many of which you will be unlikely to go beyond such as we live on a planet with a high degree of disharmony, we have severely polluted our planet over the last 100 years, and other various external and internal themes.
Perhaps pollution, if your heart calls you to this particular area, is a theme you wish to explore. You then could contribute to the lessening or elimination of pollution in your area or around the globe.
Also, becoming aware of health, nature, harmony and balance as you have you certainly could choose to live in a location where nature is relatively pristine, and pollution damage is minimal.
Understand that while we all share this reality bubble, we each have our own individual bubble as well.
But back to your original question, I have no doubt that you could with enough meditation and belief system realignment you could shift to a reality where there is no pollution.
The core concept to consider is that the past does not equal the present. One creates the past, and the future in the NOW. Are you ready to release your linear time perspective belief system?
