Question

On average, a 1°C change in temperature is enough to put corals at risk of bleaching and death. Based on the slope of the trendline, in how many years will global temperatures be 1°C above average? Show your work and justify your answer.

Answer 1

It takes 50 years to rise global temperatures to 1°Celsius.

It takes 50 years to rise global temperatures to 1°Celsius if the temperature increases per decade is 0.18 °Celsius. From 1880, global temperature increased at an average rate of 0.07°Celsius (0.13°F) per decade but due to industrial revolution the average rate in global temperature increase double i. e. 0.18°Celsius.

If global temperature increases with the rate of 0.18°Celsius per decade, it takes about more that 50 years to reach global temperature to 1°Celsius so we can conclude that 50 years is needed to rise global temperatures to 1°Celsius.

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