There is a long list of ways to fight against a degrading environment. Activism, new technology, decreased resource use and many others allow us to actively lessen the toll taken by our modern civilization. All techniques we should continue rely upon! Unfortunately there is once principle that is almost impossible to reverse and has a huge impact on how we view our planet: Changing Baseline Syndrome.
Changing baseline syndrome is the concept that as our perception of things change, so does the level you consider to be fine. In other words, you or I today view the world as it is and while we know it was better in the past, it is hard to visualize. In 20 years, when we are continuing to try to restore a healthy earth that becomes what we think of as “normal.” While that may not seem terrible, that means those who view that time as normal will not fully comprehend how much better (or hopefully worse!) it was 20 years before.
This means that no matter what we do there is always going to be a perceptive shift with each generation. Each will feel that the environment of their youth is as good as it gets. Which means that what they fight to make a healthy environment is still much unhealthier than it should be!
Not the thoughts I am sure you were looking to read today, but a fact we have to deal with nonetheless!