据报道，由于砍伐树木，野生动物的生存空间正在减少。

It is reported that living spaces for wildlife are being reduced due to the cutting of trees.

华南虎的数量正在减少。

The number of South China tigers is decreasing.

濒危物种的人口正在减少。

The population of endangered species is declining.

农村地区的人口正在减少。

The populations in rural areas are decreasing.

濒危动物的数量正在减少。

The number of endangered animals is decreasing.

电动汽车的出现正在减少污染。

The emergence of electric cars is reducing pollution.

江豚的数量正在减少，需要保护。

The number of finless porpoises is decreasing and needs protection.

由于栖息地丧失和中毒，秃鹫的数量正在减少。

Vulture populations are declining due to habitat loss and poisoning.

由于环境问题，许多公司正在减少氟利昂的使用。

Due to environmental concerns, many companies are reducing their use of freon.

北极熊的数量正在减少，因为它们的栖息地在消失。

The number of sea bears is decreasing because their habitat is disappearing.