I could go on about the plight of birds for a long time. Populations have plummeted in North America by something like 30% in the last 40 years (habitat loss, outdoor cats, window strikes, dramatic decrease in flying insects, climate change, etc.). Hiking and camping are obviously still doable, but the season for it in Texas seems shorter every year and you pretty much have to travel to the Big Bend region or Easter piney woods to get more than a mile or so from a road. The west is on fire more often than not and the remaining protected areas are at risk of losing protection (see Grand-Staircase Escalante/Bears Ears NM, lots of places in Alaska under Trump), while the quality of land around NPs and national forests is constantly being degraded, concentrating outdoor enthusiasts and wildlife in smaller and smaller spaces.
Globally, wildlife populations have decreased by 2/3's in the last half-century. The premier wildlife and natural landscapes on every continent are vanishing, whether I make it to those places one day or not.
So basically I need to develop some indoor hobbies.