I would uninvent

Plastic is undoubtedly the first thing that I would uninvent. In facts, people use plastic for various things: packaging, transporting, manufacturing, etc. It plays a big role in our life and we use it uncontrollably everyday, but at the end of the day, have you ever thought of what happens after we are done using it? It is hurting the entire our world much more than anything on earth by far.

According to the scientists, plastic is made out of petroleum, which cannot be digested. It will continually break down into smaller pieces, which causes more harm than just stays in one piece. People are trying so hard to protect animal and marine mammals from hunting, but they do not pay attention to the fact about plastic, that ends up in the oceans and kills around ONE MILLION marine species EACH year. So what is the point of protecting animals at the first place when people still overusing plastic, they will be dead anyway, won't they?

In other words, if plastic was a virus, and our planet was a cell, then you can see that we are living in an incurable world because the overuse of plastic :( The oceans will be filled with full of plastic trash, it is sadly happening right now people. The Great Pacific Garbage Patch is the most noticeable, which contains tonnes of plastic trash in the middle. Please do recycling bags, bottles, or anything made of plastic, it is definitely going to be an unsolvable equation to the environment  if people still ignoring this sadly fact.