What will happen to different wine regions under climate change?
This a very difficult question to answer and I will only attempt to deal with the how as opposed to the when. Let’s start with the big picture then drill into examples of different countries. Climate change has, as its engine, gases in the atmosphere that increases the insulation around the earth. The same energy is reaching us from the sun, it’s just that less radiates back into space. The greenhouse gases insulate the earth. But the heating is not likely to occur evenly over the planet. The ocean and its currents circulate warm water from the equator to the colder poles of the planet. By acting as a huge cooling system, areas near large oceans will not heat up as much as areas in large land masses. If you look at the globe the Northern Hemisphere has much more land than the Southern Hemisphere which will stay relatively cooler. As temperatures climb the ability of the air to hold moisture increases, so expect higher humidity for coastal regions. Higher humidity also means more rain,