Scientists measuring the global climate have found that the world's climate is changing. The average world temperature has increased by about half a degree Celsius since the 1850's. _____ By the middle of the next century it is likely the world will be 1.5 C warmer than today



If the ozone layer thins, the extra ultraviolet light may have an adverse effect on plan growth
Scientists are predicting that this trend will continue
Most nations are willing to accept the inevitable consequences of global warming
Pollution of the land, sea and air occurs as a result of many human activities

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