Prediction based on two environmental factors

I am university student who has to conduct some analysis on environmental data over a 20 year period (2000-2020)- [precipitation, temperature] and see if they are related to changes in production of a [crop].

I then have to (if the data is fine) predict future [crop] production (say to 2050) based on these factors (as well as historical crop production itself? - I'm not sure)

Apologies if this is a basic question, my statistics skills are lacking, I would be thankful for any advice.

[Screenshot of data]

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