Many scientists think so. Last summer some areas of the United States had long heat waves and dry weather. So far, this winter has been terribly cold and snowy for some parts of the United States. As summer approaches many people are worried about more heat waves and droughts. The answer may have more to do with climate than weather.
Weather is what it's like outside each day.
Climate is a record of the weather over time. Studies show that Earth's temperature has increased by about one degree Fahrenheit since 1880. This may not seem like a big increase, but it makes many scientists worry that the Earth is warming up too fast. This change in climate is called global warming. Scientists are worried because global warming is happening faster than ever before.