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A new study published in the journal Nature has illustrated that the global rise in sea levels is worse than originally anticipated, and the rate of increase is accelerating. Between 1993 and 2014, the rate of increase jumped by 50 percent, with the average rise in 1993 being 2.2 millimeters (0.87 inches), and 2014 showing a rise of 3.3 millimeters (0.13 inches). This study follows an earlier paper that found that sea level increases are now nearly triple that of their pre-1990 levels.
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In science’s quest to develop less polluting sources of energy, hydrogen gas has often been used as an example as a potential replacement for fossil fuels: aside from being the most abundant substance in the universe, it is also the most combustible natural substance known, and only produces pure water when burned with oxygen. Unfortunately, the chemical instability of its gaseous form means that storing it is inherently hazardous, and the extraction of the gas from hydrogen’s more stable forms, such as water or petroleum products, can be highly energy inefficient, or produce a disproportionate amount of waste pollutants.
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