Thursday, December 28, 2017

Warming and Cooling

From No Tricks Zone:
In assessing the global-scale trends in near-surface (0-20 m) ocean temperatures between 1900 and 2010, Gouretski et al. (2012) determined that the world’s oceans warmed by about 1.1°C between 1900 and 1945 (~0.24°C per decade), but then only warmed by an additional net 0.3°C between 1945 and 2010 (~0.046°C per decade), including a cooling trend between 1945 and 1975. The early 20th century warming was therefore about 4 to 5 times greater both in magnitude and rapidity as the post-1945 warming. Interestingly, Gouretski et al. (2012) also point out that large regions of the oceans have been cooling since the 1990s.
Decadal mean SST and 0–20 m layer anomalies calculated relative to the reference decade 2001–2010 give evidence of the general warming of the global ocean since 1900. However, large regions of the oceans have experienced cooling since the 1990s. Whereas cooling in the tropical Eastern Pacific ocean is associated with frequent La Nina events in the past decade, the cause of the cooling within the Southern Ocean remains unknown.”
According to Riser and 26 co-authors (2016), the globe’s oceans have warmed in some places, cooled in others, and the overall net change has been a warming of a little less than 0.2°C (0-1000 m) since about 1950, or about 0.03°C per decade. (Read more.)

From The Daily Wire:
 In an address to the American people on Monday, President Donald Trump outlined his administration's new national security strategy, summed up as "America First." Missing from the "National Security Strategy" document posted on and from Trump's address was a classification of "climate change" as a national security threat, as the Obama Administration had, notably, done. Moreover, President Trump made it clear that the country's sovereignty and economic interests will come before adherence to international environmental regulations tied to climate change.

This is not exactly a surprise; President Trump boldly pulled the United States out of the economically crippling Paris Climate Accords this summer, much to the distress of his predecessor. "At the moment, we have a temporary absence of American leadership on the issue (climate change)," said Obama while attending a gala in Paris earlier this month.

As noted by The Daily Caller, "Obama’s 2015 national security strategy prioritized climate change as a national security threat. Obama’s strategy devoted more space to the threat posed by climate change than to the threat posed by North Korea." Yes, you read that correctly: President Obama classified ambiguous climate change as a greater threat than North Korea. (Read more.)

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