From earliest times, people have changed their environments. How have people today changed their environment? Discuss both the good and the bad.

People have been looking for ways to change their environment and make it more adapted to them, ever since they started to roam the Earth. Some of those changes are very positive, and have helped our everyday lives, but some of them are very negative, and are majorly affecting our environment.

As I mentioned above, people have started changing their environment a very long time ago, and most of those changes were still quite positive. Changing the environment also means changing the creatures that live within it. When people started farming, they started domesticating plants and animals. Over time, animals got different adaptations, because they no longer had to go out hunting, and worry about surviving in harsh conditions.Both plants and animals had to rely on humans for survival, who provided them with everything they needed. This environmental change was good, because it didn't harm the animals, and it helped humans, because now, there was a stable food supply.
Another environmental change is people starting to build houses, when they started having permanent settlement. Building houses required material such as wood, stone, etc. This meant taking some of te natural resources from the environment. However, I think that this environmental change was positive. Humans didn't take large amounts of natural resources, they just took as much as they needed, so the environment wasn't harmed. This change benefited humans, since they could now protect themselves, start farming, etc.

Nowadays, in the modern world, people have started making much more NEGATIVE environmental changes. Firstly, people have started building factories in order to make transportation devices, jewelry, food, etc. This is really bad for the environment, because not only are we polluting the air with carbon dioxide, we are also making much more then we need. Let's take the food industry, for example. We are making much more food then we need, and we are throwing much of it away. We are genetically modifying the cows, chickens, etc, to become plumper faster, and to give much more meat, milk and other products.
Also, in order to build those factories, aeroports, highways, we are ruining the environment, and are causing deforestation, killing the habitat of many animals and plants. Because of how much carbon dioxide we let into the air, we are melting ice bergs on the North and South Pole, and therefore, endangering species such as polar bears, seals and other animals and plants.