How do scientists study global climate changes?

Answer 1

Two main methods are on the ground field studies and using computer models.

Computer models are used to model how the entire climate system works, and then future scenarios as to how it might continue to change are made. Field work involves measuring rates of climate change (e.g. melting glaciers) and impact to ecosystems, to name two examples.

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Answer 2

Mason Allen

Scientists study global climate changes through various methods, including satellite observations, climate models, ice core analysis, ocean and atmospheric measurements, and paleoclimate reconstructions.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.