The conclusion's second task is to make a final comment that supports the thesis in a memorable way. The closing lines of a paper must therefore place the thesis in a larger context by showing its significance within the field of study.
Here are a few ways of ending the paper:
Answer a question that was asked in the introduction.
We seem to find industrial expansion more important than environmental issues not simply because of self-interest, but because of short-sightedness as well. Indeed, it is partly because we do not bother to think of long-term consequences that we destroy such important ecosystems.
Illustrate your position with a relevant image.
Instead of a rainforest filled with life, imagine a vast pit of rotting tree stumps and animal carcasses. This is the inevitable effect of the extinction of the red-tailed swallow. It has already begun, through clear-cutting practices and corkscrew beetle infestations, and it has to stop before it is too late.
Make a prediction or propose a solution.
In order to save the red-tailed swallow, we must halt the destruction of its habitat and provide compensation for the inhabitants of Ungolu. If we do not act quickly, there will soon be no rainforest left to speak of, and the inhabitants of the area will be even worse off than before the introduction of logging practices.