根据所学课文内容填空。 However, the attitudes of s

题目：

根据所学课文内容填空。

      However, the attitudes of scientists   1   this rise are completely different. On the one hand, Dr. Foster thinks that the   2   which increases the temperature    3   5 degrees would be a catastrophe. She says, "We can't predict the climate well enough to know   4   to expect, but it could be very serious." Others who agree with her think there may be a rise of several metres in the sea level, or predict severe storms, floods, droughts, famine, the   5   of diseases and the disappearance of species. On the other hand, there are those, like George Hambley, who are    6   to this view and believe that we should not worry about high levels of carbon dioxide in the air. They predict that any warming will be mild with few bad environmental   7  . In fact, Hambley states, "More carbon dioxide is actually a positive thing. It will make plants grow quicker; crops will produce more; it will encourage a greater   8   of animals - all of which will make life for human beings better."