I recently came across this interview in the Asia Sentinel with Ogyen Trinley Dorje, one of the two young lamas recognized as the 17th Karmapa. It is a great interview and I recommend reading the whole thing, but this passage in particular jumped out at me.
The distance between humans and the environment is becoming wider and wider and likewise, we are bringing more and more harm to the environment by using it indiscriminately. Actually, before using the environment, we should think; it is very important to think of the consequences of indiscriminate destruction of the environment. Lack of mindfulness is creating a lot of problems.