Something that humans cause, especially changes to the environment.
An increase in carbon dioxide levels is largely due to human activities, such as the burning of fossil fuels.
二氧化碳水平的增加主要是由于人类活动,例如燃烧化石燃料。
Related to or caused by human actions, especially those that harm the environment.
Climate change caused by human activities is known as anthropogenic climate change.
由人类活动引起的气候变化被称为人为气候变化。