Scientists have discovered that global warming is main reason for a decline in animal population in the Arctic. Many research implies that due to the effects of climate chang, rises in temperature have caused significant alterations to the ecosystem.

The change will only continue and possibly become worse. To prevent ecosystem destruction, United Nations should roll up its sleeves to take this international issue.

Scientists have discovered that global warming is the main reason for the declined animal population in the Arctic. According to some researches implies that the increase of temperature have caused significant alterations to the ecosystem.The change will only continue and possibly become worse. To prevent ecosystem destruction, United Nations should roll up its sleeves to take this international issue.   Good Job Thomas! Continue working on your grammar tenses. Have a great weekend!