I appreciate that climate change gets a lot of attention (possibly because it has the potential to have the highest economic costs if left unchecked) but it is my duty to remind everyone that the biggest threat to wildlife and ecosystems today is habitat loss. Not climate change. Not trophy hunting. Not even pollution–though a habitat can become so degraded from pollution that it becomes unusable.
The very best way to curb global destruction of habitat is to implement large-scale changes to our development patterns, energy production, and agricultural system. So be sure to support those efforts politically. You can also support sustainable, multi-use development in your communities(many municipalities talk about community-wide projects at city counsel meetings!). Live densely. Eat less meat. Call out self driving cars for the sprawl-supporting pact with satan that they are. Support public transportation! Don’t support sprawl and McMansions! Recognize that suburbia in general and lawns in particular are a facsimile of greenness that destroy actual usable habitat and replace it with sterile monocultures that require gallons of water, pesticides, and fertilizer to maintain. Stop using products with neonicotinoids altogether. Make your yard wildlife-friendly. Consider a brush pile. Keep your damn cats indoors. Plant native plants. Remove invasive plants. Maybe don’t freak out and call animal control every time you see a bat or snake or coyote in your neighborhood since they were literally there first and we’ve left them no place else to go. Watch out for herps crossing the roads in the breeding season, especially our salamanders. Plant a NATIVE tree. Support your local parks, forests, and waterways, big and small.