Climate change may fall in solar activity.
If you believe that there are experts forecasts, in the near future the climate will become more serious, resulting in crop and famine failures. In 1645-1715 years have happened before Ice Age, when the summer was frozen. Medieval people could not farm animals, not enough food, and the population, respectively, were hungry.
NASA scientists say that every month in the Sun is "more sleeping" soon, any activity on the burn will end. Last year in the Sun, there are almost no cases. Experts say that everything that happens is evidence of the circle changing. In this way only in the Middle Ages.
Now, we can observe climate change on the territories where once it was relatively warm, the snow began to fall. Changes occur so fast that people will not have time to prepare.
NASA is not afraid of future events, as everything may go more or less smoothly. Humanity may not notice any shortage.