'Environment pollution'. First, write a good topic sentence and then write sentences to develop that idea.
The impact of changing climate
The change of climate is now a major global concern. The worst of all the problems that affect all the flora and fauna of our environment is climate change. There are many plants and animals that are vulnerable to climate change. As a result of increasing temperature, they are likely to be extinct from nature. At about 18000 years ago, sea level was more than 100 meters lower than today. Over the past century, sea level has risen by 10-20 c. m. possibly in response to global warming. The mangrove forest will be affected because of increasing salinity during the winter season and high tides at monsoon. Moreover, coastal surges will also raise the water level in the area. Therefore all the plants and animals vulnerable to climate change will be affected severely. Due to high salinity, many trees will be eliminated. All the flora and fauna will be affected by the salinity of the water. They will lose sources of their food and shelter.