I enjoy flying on days that are clear enough to see the vegetation below. While flying over the Eastern half of the US, the human imprint on the land is often significant, as seen in this image from a recent flight between Miami and Orlando, Florida. As a photographer, it is interesting to explore the geometric plots of varrying shades of green plants to brown dirt.
The contrasting image is from a flight into the Amazonian rainforest in Bolivia. It is a powerful experience to fly over vast expances of rainforest with no signs of human encroachment, especially with an appreciation for the diversity of life that is supported by the ecosystem. One of the largest threats to the rainforests is conversion of the land for agriculture. If you haven't traveled to visit a rainforest, I strongly recommend considering making plans to do so. Consider it an investment in yourself, as you will be guaranteed some incredible experiences connecting with nature. Nature has many lessons to teach you, it you take the time to pay attention.
The following resources will get you started if you want to plan a trip to visit the rainforest: