Deforestation is one of the biggest environment threats to the ............... balance in the world.

There are many ways for us to reduce our carbon ............... in order to save our environment.

The effects of climate change on human and nature are .......... .

I believe that the only way for us to reduce global warming is to cut down on ............. use.

Planting trees can contribute to reducing global warming as trees ............ and absorb carbon dioxide in the air.

As global temperature rise, there are more cases of heat-related ............ .

Motor vehicles running on petrol are responsible for a large amount of carbon dioxide .............. .

Climate change may lead to the extinction of many species and upset the ecological ............ .

Although global warming is causing changes in weather patterns, it is only one aspect of ................. change.