Time travel doesn't just impact the past - it can also have a significant impact on the future. If someone were to travel to the future, they could potentially learn information that could alter the course of history.

However, this raises ethical concerns about altering the future. If someone were to learn information that could prevent a future disaster, would it be ethical to change the course of history? What are the potential consequences of altering the future for future generations?

Another consideration is the impact of time travel on the environment. Time travel could potentially have a significant impact on the environment, especially if it involves traveling back in time. Changing the course of history could have unforeseen consequences on the environment that could impact future generations.

These ethical considerations must be taken into account when considering the possibility of time travel. While it may be tempting to alter the future for personal gain or to prevent a tragedy, the potential consequences must be weighed carefully.

Works Cited
Bostrom, Nick. "The Ethics of Time Travel." Journal of Applied Philosophy, vol. 17, no. 2, 2000, pp. 135-145.
Humber, James M., and Almeder, Robert F. "The Ethics of Time Travel: A Defense of Presentism." Public Affairs Quarterly, vol. 1, no. 2, 1987, pp. 119-132.