给出一篇英文文章，要求使用GPT模型将其中的动词转换为过去时态。


这是一篇关于气候变化的文章，文章中有很多使用现在时态的动词。
Here is an example of transforming verbs into the past tense using GPT model for an article on climate change:

Original text:

Climate change is a global phenomenon that affects every living being on Earth. It is caused by human activities such as burning fossil fuels, deforestation, and industrial practices. Scientists warn that if we don't take action now, the consequences could be catastrophic.

Transformed text:

Climate change was a global phenomenon that affected every living being on Earth. It was caused by human activities such as burning fossil fuels, deforestation, and industrial practices. Scientists warned that if we didn't take action then, the consequences could have been catastrophic.