Human activities
Some people believe that human activities is harming the Earth. Others think human activities makes the Earth a better place...
In my opinion I think that human activity is harming us the environment and the animals and I have the facts to prove them.

First of all, human activities contribute to climate change by causing changes in the Earths atmosphere in the amount of greenhouse gases. for example as we burn fossil fuel like coal and natural gas we are increasing the amount of greenhouse gases in the Earths atmosphere which causes the climate change in the Earth.

Second of all, floods are not only causing destructions to cities but also take peoples lives away... Because of cutting down trees for personal benefits, tree roots cannot hold the soil in place to absorb water from the soil making soil unable to store more rainwater which leads to flood. For example in this century we are getting more floods and more deaths from it because of the lack of trees and plants in our cities. 

Furthermore, the toxic that is being released from our factories as we all know is polluting the air and water and because of that a lot of homeless people do not have safe and clean water. that toxic from the factories is not only polluting water and air its also giving new several deadly diseases which endangers human life like Ebola, Malaria, HIV, Influenza.

Last but not least, by doing all of this activities we are putting animals lives in danger. For example as the human population grows and the rich countries continue to consume recources at voracious rates we are crowding out, poisoning and eating all other species into extinction. The most endangered animals in the world are polar bears, mississippe gopher frogs, long head sea turtles, kit foxes etc.

In conclusion, if humans continue to do the same mistake the Earth will be in danger and people won't live healthy and won't live in a healthy lifestyle :O.