Scientists observe data trends by observing temperatures, over long periods of time and observing related climatic changes associated with those trends, This includes winds, precipitation, cloud cover. The data is then incorporated into climate algorithms which calculated trends and impacts into the future. The predicted trends are verified as time passes to improve the algorithms to generated better trend data.
This results in future estimations of climate change.
...to make predictions. Scientists will then compare their predictions to what happens in the real world. If their predictions equaled what happened in reality, the model is good. If the predictions were different, the scientists know they have to refine the model to better predict what will happen.
Lots of different scientists test the same things to compare different conclusions.
You would have to ask those "different scientists"
material scientists are scientists who work with different types of materials to cate new ones
Scientists learn a few different things. Scientists learn new things very day.
Archaeologists. Astronomers. Biologists. Chemists. Computer Scientists. Earth Scientists. Educational psychologists.
scientists use taxonomy to classify and separate them into different groups
oceanographers are scientists of oceans, and meteorlogists are scientists of weather.
There are many different types of scientists because one person could not handle all the information of geology, astrology, and other types of science. Since there are numerous types of sciences, there has to be many different types of scientists, so there are many different scientists because there are many different sciences.
Scientists use equipment so that they can figure out different substances in different objects which have not or have been tested
Why do scientists use different types of models to represent compounds?
Scientists show creativity by expirimenting in different ways.