Crops under stress because of global ... cooling?

From the Telegraph in London:

For the second time in little over a year, it looks as though the world may be heading for a serious food crisis, thanks to our old friend "climate change". In many parts of the world recently the weather has not been too brilliant for farmers. After a fearsomely cold winter, June brought heavy snowfall across large parts of western Canada and the northern states of the American Midwest. In Manitoba last week, it was -4ºC. North Dakota had its first June snow for 60 years. [ ... ]

There are obviously various reasons for this concern as to whether the world can continue to feed itself, but one of them is undoubtedly the downturn in world temperatures, which has brought more cold and snow since 2007 than we have known for decades.