On Oct 8th, 2019, Iceland honored the passing of Okjokull, the first of Iceland's glaciers to disappear on account of climate change. In 1890, the glacier ice covered 16 square kilometers but in 2012, it (measure) just 0.7 square kilometers. A monument is set up at the site of the former glacier, bears the inscription (题词) A Letter to the Future, and is intended (raise) awareness about the decline of glaciers and the effects of climate change.
The world is quickly realizing is necessary to actively pull carbon dioxide out of the atmosphere to prevent the ill effects of climate change. Scientists and engineers have proposed a (various) of techniques to deal with the change. , most would be extremely expensive — without (bring) any profits. Therefore, no one wants to foot the bill.
One method explored in the past decade might now be a step closer becoming practical. The process (involve) pumping CO2 carried through the air down into methane hydrates (甲烷水合物) right under the seafloor, where the gas will be (permanent) stored, or separated. The incoming CO2 pushes out the methane, which will be piped to the surface and burned to provide electricity, to power the separation operation or to bring in money to pay for it.
