Make a difference
From a philosophical perspective, it is ethical that each part of life realize its true potential - that each part of life become that which it was intended to be. This is as true for human beings as it is for all of Nature's creatures. To achieve our intended purpose, there must be an essential balance with Gaia (mother earth). In the absence of the intrinsic harmony implicit between each part of life, many ecological problems begin to arise. As David Suzuki observes in his book The Sacred Balance, we need to rediscover our place in Nature.
Through our loss of a worldview, our devotion to consumerism and our move into the cities and away from nature, we have lost our connection to the rest of the living planet. David Suzuki
Since human beings have Free Will, we can choose to ignore Nature's laws and continue to destroy our environment by our ignorance, pride and insatiable desires, or we can, as Thomas Berry says, find a new story. We can share this Earth with all of the planet's life in a harmonious and sustainable way if we can find intelligent solutions and make the necessary efforts to get there.
Concern should drive us into action and not into a depression. No man is free who cannot control himself. Pythagoras