Since climate is hard to study on a global scale scientists use computers models to make climate predictions ture or false

its false  

Explanation:

they can just track it without the device

TRUE

Explanation:

Weather forecasting helps everyone plan their daily, vacation and work activities. Studying the entire climate on a global scale is unfeasible for methodological and cost reasons. To address this, researchers use advanced computers and software that are able to accurately predict climate change. This is important especially in cases of thunderstorms as they alert the population to protect themselves.