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Climate Change: Even Short-Lived Greenhouse Gases Can Drive Sea-Level Rise For Centuries

Over the past 100 years, the global average sea level has risen by roughly 7 inches. This rise has been fuelled by two key factors — the added water from melting land ice, and the expansion in volume of seawater as it absorbs heat from the atmosphere.
If we examine the trend over the past 20 years alone, world’s oceans have warmed at a rate of 0.12 degrees Celsius per decade — a continuation of the trend that began in the last half of the 20th century, when humans began pumping massive quantities of heat-trapping greenhouse gases into the atmosphere.
In such a scenario, there is a question climate activists have often asked — what, if anything, can be done to prevent sea levels from rising to an extent that poses an existential threat to low-lying island nations…