The year 2015 was recorded to be the hottest year since scientists started to keep, as it saw record-breaking temperatures for specifics times of the year. A new study has found that those temperatures might even become the new normal weather conditions by 2030.
The study was recently published in the Bulletin of American Meteorological Society. It found that if the current rate of carbon emissions continues unmitigated, then what we considered to be an extremely hot year across the world will become the new normal by 2030.
Dr. Sophie Lewis, from Australian National University where the ARC Centre of Excellence for Climate System Science can be found, and the lead author of the study, offers a bleak perspective for our future. At this point, no matter what action humanity decides to take in combating climate change, the conditions for a new normal in higher global temperatures no later than 2040, have already been fulfilled and they are irreversible.
However, the study also revealed that despite global average temperatures being already set in stone, we can still do something to avoid record-breaking seasons from setting in as average in every ear, if not at the global scale at least at the regional levels. To prevent the worst-case scenario, governments around the world would need to take immediate and ambitious action regarding carbon emissions.
Dr. Lewis warns that anything less than that will lead to a new normal in record-breaking temperatures. The first one to experience this trend will be Australia, which experienced temperatures of 50 degrees Celsius in the summer of 2013. Summer which by 2030 would not be anything out of the ordinary at that point.
The study uses the term “new normal” which has also seen a lot of use when talking about climate change, but no one has tried to explain its precise meaning until now. Dr. Lewis and her colleagues considered that a new normal in temperatures will set in when half of the years following a year with record temperatures will be cooler and the other following half will be warmer. When this scenario is met, then a new normal has been established.
What was the hottest temperatures recored in your region?
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