Worldwide increases in population and affluence have created a disparity between supply and demand of food in recent years. This in turn has caused grain prices to rise, and poor people to go hungry. The New York Times reports that these issues are worsened by climate change which is currently impeding food production, and promises to become an increasing problem over time:
Many of the failed harvests of the past decade were a consequence of weather disasters, like floods in the United States, drought in Australia and blistering heat waves in Europe and Russia. Scientists believe some, though not all, of those events were caused or worsened by human-induced global warming.
Temperatures are rising rapidly during the growing season in some of the most important agricultural countries, and a paper published several weeks ago found that this had shaved several percentage points off potential yields, adding to the price gyrations. Continue reading