Sure, the bands of where plants can grow may be moving. But, you forget: we are on a size limited planet. those bands can only go so far (how much land is there in the artic circle compared to lower latitudes?) before they reach inhospitable soil types, weather problems, geographical problems ( hard to grow something when the growing area is now in a mountainous zone.....), water supply problems, water oversupply problems, etc. Oh, and dont forget changing food supply problems tend to incite societal unrest and rising prices, and aridification can lead to desertification, so congratualtions, your warmth hardy plants now have nowhere to grow, along with the cold loving plants, leaving you with a food supply trending towards monocultures.....
thinkstoomuch wrote:So if it gets warmer one place grows wheat, where perhaps they grew oats. Guess what they now grow wheat other places that couldn't grow it before. Oat growing belt is now moved. up.
Likewise where it may have been dry it is now wet. Where it was wet is now dry. Various modifications of the above.
Um, that is what happens when it the world wide weather which reflects climate, changes.
Something farmers figured out a few years ago. Who figured out how to grow corn to support the tribe in the America Plains? I'll give you a hint It wasn't the European immigrants(current scientists don't credit to the menfolk either). If a stone age culture can figure it out I think that we should be able to as well.
Good Grief. Read IPCC's own CLIMATE CHANGE 2013 The Physical Science Basis Summary for Policymakers. Stop listening to the alarmist reporters and do your own reading.
T2M