Final answer:
Global climate change is expected to impact thunderstorm activity in the United States over the next century. The environment necessary for severe thunderstorms will occur on more days for most locations east of the Rockies, while thunderstorm days are expected to decrease in the Southeastern United States.
Step-by-step explanation:
According to climate models, global climate change is expected to impact thunderstorm activity in the United States over the next century. One of the projections is that the environment necessary for severe thunderstorms will occur on more days for most locations east of the Rockies. This means that the conditions for severe thunderstorms, such as strong winds and heavy precipitation, will be more frequent in these areas. It is important to note that while thunderstorm days are expected to increase in some regions, such as the Midwest, thunderstorm days are expected to decrease in the Southeastern United States.