Deforestation is a good example of a human activity that effects the environment.
Name at least three other activities or human-induced effects, which can be observed from space, that have the potential to impact the environment. We'll probably be spending more time outside in the next few months. We're more aware now about the consequences of avoiding soaking up too much Sun. The comet Hyakutake is coming, and we should be able to get a pretty good look at it, if those darn clouds don't interfere too much. Look for it just to the east of the Big Dipper .