C Question 2 1 pts True, false, or unknown: adaptation decreases the social costs of climate change. 0 True 0 False 0 Unknown _. Question 3 1 pts Which of the following best reects the main nding of the Barreca et al. paper? 0 Extreme cold increases mortality, and as the climate has warmed in the 20 th century. fewer people have died from extreme cold 0 Air conditioning uses coalred electricity, which contributes to climate change. 0 Extreme heat increases mortality, but used to do so more before 1960. Air conditioning accounts for most of the decline in the heatmortality relationship. - mic-accommodations-hub