지구온난화가 예상보다 심각하다는군요. 이산화탄소 절감이 필수적이라는데... [기사]

http://www.nature.com/articles/s41586-018-0651-8

최대 에너지 소비국인 미국이 트럼프 때문에 저 지경이니...

지난 25년간 전기 생산을 위한 에너지 소비가 150배로 늘었고, 바닷물이 이제까지 예상보다 60% 이상의 에너지를 흡수한 상태가 되었다고. 그래서 화석연료를 사용할 수록 더 민감하게 반응하게 되었다고...

The ocean is the main source of thermal inertia in the climate system ¹ . During recent decades, ocean heat uptake has been quantified by using hydrographic temperature measurements and data from the Argo float program, which expanded its coverage after 2007 ^{2 , 3} . However, these estimates all use the same imperfect ocean dataset and share additional uncertainties resulting from sparse coverage, especially before 2007 ^{4 , 5} . Here we provide an independent estimate by using measurements of atmospheric oxygen (O ₂ ) and carbon dioxide (CO ₂ )—levels of which increase as the ocean warms and releases gases—as a whole-ocean thermometer. We show that the ocean gained 1.33 ± 0.20  × 10 ²²  joules of heat per year between 1991 and 2016, equivalent to a planetary energy imbalance of 0.83 ± 0.11 watts per square metre of Earth’s surface. We also find that the ocean-warming effect that led to the outgassing of O ₂ and CO ₂ can be isolated from the direct effects of anthropogenic emissions and CO ₂ sinks. Our result—which relies on high-precision O ₂ measurements dating back to 1991 ⁶ —suggests that ocean warming is at the high end of previous estimates, with implications for policy-relevant measurements of the Earth response to climate change, such as climate sensitivity to greenhouse gases ⁷ and the thermal component of sea-level rise ⁸ .