Environment
Over 90% of the destruction of the planet is due to human action.
Each year there are more hurricanes, small or big tsunamis, earthquakes, droughts, fires, floods. Some are caused by human actions and others are natural disasters.
(The earth goes to change itself, it is at less 10% and it have to something to do in this changing.) Humans are accelerating this change.
Each year there are more earthquakes, droughts, hurricanes, and floods. Those disasters are caused by pollution and contaminating waste. We are aware that when we use the car and we don't use public transport, we are helping to increase greenhouse gases and with them, the earth is warmed and there are many disasters.
We should take responsibility for this changing. When we choose to use the bicycle instead of the car our world will change.
It's not clear to me what you mean in the sentence marked in red. Be careful with words like "it". There needs to be no confusion about what "it" refers to.
Keep writing, Mary!