How Do Climate Change Over Time

Climate change over time

By Kaden Karns

Climate is something that everywhere has. It is a big part of what makes earth livable, but it's also something that can change drastically over thousands of years. Climate is the overall temperature or conditions over a long period of time. Climate is usually confused with weather, but the are not the same thing. Weather is the state of the atmosphere at a certain place or time. Climate is the average temperature of the atmosphere over many years of time. Climate can change by greenhouse gases changing or even the shifting of tectonic plates that move the continents to different places on earth that are warmer or colder than the last spot.

We calculate climate by observing years of weather and the temperature

and line it up to see the overall temperature. Scientist find out the temperature of past years by using paleoclimate proxies. paleoclimate proxies shows what the temperatures were like in different years that it has been alive. These proxies include tree rings, sea coral, fossils, and many other things. There are multiple climates on the earth right now. Different climates include equatorial, desert, mediterranean, temperate maritime, temperate continental, and more. Iowa’s climate currently consists of an average of an average temperature in Iowa of 50.85°F, and average rainfall of 35.67 inches. Climate will not stay the same forever, and the climate in Iowa has changed many times in the past years just like everywhere else. For example approximately 11700 - 2.5 million years ago Iowa was in the pleistocene epoch; a ice age where at least part of Iowa was covered in glaciers, and all of Iowa was cold. Also about 286 million years ago a geological period called the pennsylvanian era, Iowa existed as a lush tropical swamp on the shores of a shallow sea. Hot humid tropical temperature. Meaning Iowa was once close to the equator. This shows how climate can have big changes over thousands to millions of years.ent
Everywhere has a climate. Either hot or cold or rainy or dry. They are all climates and they can all change and have changed in the past years since the earth has formed. Climate and weather are different even though people may say diffr. Climate is the overall temperature or conditions over a long period of time.