June 6, 2011 - The tropics and much of the Northern Hemisphere are likely to experience an irreversible rise in summer temperatures within the next 20 to 60 years if atmospheric greenhouse gas concentrations continue to increase, according to a new climate study by Stanford University scientists. The results will be published later this month in the journal Climatic Change.
In the study, the Stanford team concluded that many tropical regions in Africa, Asia and South America could see "the permanent emergence of unprecedented summer heat" in the next two decades. Middle latitudes of Europe, China and North America – including the United States – are likely to undergo extreme summer temperature shifts within 60 years, the researchers found.
The year of the long winter is continuing in the Lake Almanor Basin. After April showers there was hope for May flowers, but the spring plant growth was slowed down by more snow in May.
There have now been seven consecutive months with measurable snowfall. And this year’s March through May period was the snowiest spring we experienced for at least the past decade.