What is the main cause extinction on Earth today?

The main cause of extinction on Earth today is human activity. Human activities such as habitat destruction, over-exploitation of resources, pollution, and climate change are the leading causes of species extinction. These activities directly affect species' survival and indirectly impact their habitats, resulting in population decline and eventual extinction. It is important to note that natural causes can also contribute to extinction, although these are overshadowed by human-induced factors. To mitigate extinction risks, concerted efforts in conservation, environmental protection, and international cooperation are crucial.