Average Global Temperature Welcome! You are encouraged to register with the site and login (for free). When you register, you support the site and your question history is saved.The average global temperature is forecast to be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than that of 50 years ago. The average global temperature is forecast to be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than that of The average global temperature is forecast to rise 0.5 degrees Celsius higher in 50 years over this year because this year's mean temperature is the same amount higher than it was Forecasts are for the average global temperature to be 0.5 degrees Celsius higher in 50 years than today's because today's mean temperature is the same amount higher than it was It has been forecast that the average global temperature will be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than what it was It is forecast that the average global temperature will rise 0.5 degrees Celsius higher in 50 years than this year's because this year's mean temperature is the same amount higher than it was Review Answer