God's original purpose for the humans in the garden (Genesis 2:15) is that they 'till it and keep it;' another translation might also be to 'serve and protect' it.  Clearly, in these days of climate change, resource depletion, pollution, and species extinction, we have much work to do.  And, given that these threats are most dire to the poor and vulnerable of the world, Jesus' command to love our neighbor as our own (Matthew 22, Mark 12, Luke 10) clearly calls us to act.  This isn't a partisan political issue.  It's a faith issue.