One way that severe weather in the Earth's atmosphere affects the biosphere is that it can determine ones existence. Some people can survive and some will die when there is a severe storm such as flooding, tornadoes, and hurricanes.
Explanation:
There are many various ways that the biosphere (the plants, animals and other life on our planet) affect climate. Some produce greenhouses gases and further warming of our planet by the greenhouse effect, while others diminish the number of greenhouse gases increasing cooling of our planet.