A、Huge Storm. B、Earthquake. C、Snow slide. D、Disappearance of living species. D新闻中指出，气候的不断变暖会使一些地区的降雨量急速下降，而有些地方却洪水泛滥，世界上一半的动植物灭绝

A new study on climate change says a disastrous 4-degree rise in global temperature is increasingly likely to occur within many people’s lifetimes. The studies have been adopted by one of the world’s leading research bodies monitoring climate change, the Hadley Centre in Britain.
    This latest prediction from the Hadley Centre brings the prospect of destructive change much closer. He challenges the assumption that severe warming is a threat only for future generations. A four degree average temperature rise by the 2050s would bring increases of 10 degrees or more in some areas such as the Arctic and Africa. It could mean a sharp decline in rainfall in some areas, flooding in others and disappearance of about half of all the world’s animal and plant species.
1. How many temperatures are expected to rise globally by the 2050s?
2. What is the result of the temperature rise by the 2050s?