Get involved with nature as much as possible. That will help you, the individual. Society is a bulky sweater with a loose thread. Our beliefs, values, and ideals do not support logic. Our actions are not only bad for our planet, but the survival of our species. Many solutions seem obvious to me. I personally try to avoid retail stores, or buying new things when their production was unnecessary. People are "working" but have no sense of purpose or connection to their labor. The end result is millions in debt due to nonsensical material goods purchases and oceans full of "garbage" miles deep. Ghandi advocated spinning for good reasons. Self-sufficiency being the most important to me. THINK. THINK. THINK. Everything one does has consequences, whether they be positive or negative is up to us (YOU.) Would you like to pollute your body and the ocean with fast food? How about making a couple of Sandwiches, maybe with some freshly picked basil and tomatoes, and sharing them with a lonely co-worker. Save your brown bag. You really don't need a lunchbox. Most of us have what we need. We have fooled ourselves into believing our endless wants are actually needs. Share the fish!
Brain cells
Some things that can be done to prevent pedestrian accidents are, for example: decreasing speed for drivers or trying to get rid of dangerous crossings.
Probably nothing its not very likely to stop erosion.
There can be many things to prevent ozone pollution. Less CFC's and ground pollution can cause ozone pollution reduction.
usual or customary; commonly; customarily; ordinarily
what must be done to prevent this from happening
There is little that can be done to prevent stupid people asking unanswerable questions.
1. Habitually or commonly occurring or done; customary
occurring, found, or done often
habitually or typically occurring or done; customary.
Using renewable resources, recycling, and reducing pollution are three things that can be done to prevent premature extinction of the worlds existing species from human activities. Enact new laws to prevent species extinction can also help.
Well, from what I've heard, there are a lot of things that environmentalists do to prevent deforestation. Some have founded organizations or groups that ask the public to "adopt an acre of rainforest". Others have done more direct things such as actually going to the rainforests of the world and conducting research.