Climate change is often thought to have its winners and losers, with Canada, Nordic countries and Russia being portrayed as among the lucky few chilly nations where moderate climate change could mean net benefits such as lower winter heating bills, more forest, longer crop growth and perhaps more summer tourism.
Russia's two-month heat wave, which wrecked a quarter of Russia's grain crop and may cut $14 billion from gross domestic product, is dimming prospects that northern countries will "win" from climate change.
While Prime Minister Vladimir Putin in 2002 joked that less icy weather would enable Russians to buy fewer fur coats, President Dmitry Medvedev now blamed the heat wave on global warming – even though most experts say it is impossible to link individual weather events to climate change.
People in Nordic nations and Canada are becoming aware that climate change will not be a simple blessing for them. Possible damaging side-effects of less chill weather, including the risk to forests and crops of insect pests normally kept in check by winter frosts.