1.Environmental destruction(I think most important)
2.Global warming
2A.Overpopulation
3.Toxic waste
4.Plastic littering
5.Violence
6.Nuclear weapons
7.Chemical Weapons
8.Murder
9.Discrimination
10.Poverty
11.Starvation
12.Racism
13.War
14.Terrorism
15.rape, etc
I think these ,ure can correct me, and post yours.
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OUR FUTURE,SAD