原文： Climate change is a global phenomenon that affects the Earth's temperature, precipitation patterns, and weather conditions. It is caused by a buildup of greenhouse gases in the atmosphere, which trap heat and cause the planet to warm up. This warming can lead to many negative consequences, such as rising sea levels, more frequent and severe weather events, and changes in ecosystems and agricultural productivity.

改写： The phenomenon of climate change has a global impact on the Earth's temperature, precipitation patterns, and weather conditions. It is a result of the accumulation of greenhouse gases in the atmosphere, which causes heat to be trapped and consequently leads to the planet's warming. This warming can bring about various adverse effects such as an increase in sea levels, more frequent and severe weather events, as well as changes in ecosystems and agricultural productivity.