原文:

The world’s population is growing at an unprecedented rate and it is projected to reach ten billion by the year 2050. This rapid increase in population has put a huge strain on the Earth's resources and has led to a number of environmental problems such as deforestation, soil degradation, water scarcity, and pollution.

重述后:

The global population is expanding at an unparalleled pace, with predictions indicating it could hit 10 billion by 2050. This extraordinary population growth has imposed an enormous burden on our planet's resources and has resulted in numerous environmental challenges, including deforestation, soil erosion, water shortages, and pollution.