人类活动是造成目前气候变化的主要原因的翻译：Major causes of human activity is causing climate change now 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Human activity is causing current climate change is mainly

Major causes of human activity is causing climate change now

The human activity is creates at present climatic change the primary cause

Human activities are the main reasons leading to the current climate change

Major causes of human activity is causing climate change now