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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."