Home > Climate breakdown, Global warming, Oceans and fisheries > Rainfall and ocean salinity changing faster than expected due to global warming

Rainfall and ocean salinity changing faster than expected due to global warming

Check out this story from Reuters. It seems scientists have detected a clear change in salinity of the world’s oceans and have found that the cycle that drives rainfall and evaporation has intensified more than thought because of global warming.

Why is this significant? Current rainfall patterns are expected to intensify as the planet warms, yet this research concludes that the impacts may be worse than previously believed, leading to even more extreme droughts and flooding in vulnerable areas in the years to come. Here’s an excerpt:

Temperature data shows the planet heated up by 0.5 deg C between 1950-2000. But climate models suggest the world is on track to warm by 3 deg C by the end of the century unless the current growth of greenhouse gas emissions is quickly halted.

A warming of that magnitude would mean the water cycle intensifying by up to 24 percent, with wet regions getting wetter and dry regions drier.

Some ocean regions are saltier, meaning less rainfall and others are fresher, meaning high rainfall, making salinity measurements a good way to measure changes in rainfall patterns.

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