NASA, NOAA to Announce 2017 Global Temperatures

[BjarneModerator Super Nova]

NASA, NOAA to Announce 2017 Global Temperatures, Climate Conditions

Climate experts from NASA and the National Oceanic and Atmospheric Administration (NOAA) will provide the annual release of data on global temperatures and discuss the most important climate trends of 2017 during a media teleconference at 11 a.m. EST Thursday, Jan. 18.

NASA and NOAA are two keepers of the world’s temperature data and independently produce a record of Earth’s surface temperatures, as well as changes based on historical observations over oceans and land.

The teleconference panelists are:

Gavin Schmidt, director of NASA’s Goddard Institute for Space Studies in New York
Deke Arndt, chief of the global monitoring branch of NOAA’s National Centers for Environmental Information in Asheville, North Carolina

 

[BjarneModerator Super Nova]

Earth’s global surface temperatures in 2017 ranked as the second warmest since 1880, according to an analysis by NASA.

Continuing the planet’s long-term warming trend, globally averaged temperatures in 2017 were 1.62 degrees Fahrenheit (0.90 degrees Celsius) warmer than the 1951 to 1980 mean, according to scientists at NASA’s Goddard Institute for Space Studies (GISS) in New York. That is second only to global temperatures in 2016.

In a separate, independent analysis, scientists at the National Oceanic and Atmospheric Administration (NOAA) concluded that 2017 was the third-warmest year in their record. The minor difference in rankings is due to the different methods used by the two agencies to analyze global temperatures, although over the long-term the agencies’ records remain in strong agreement. Both analyses show that the five warmest years on record all have taken place since 2010.

 

 

[BjarneModerator Super Nova]

Even without El Niño, 2017 temperatures still soared

By Paul Voosen | Jan. 18, 2018 , 1:25 PM

Last year was one of the worst scorchers in modern history, and the hottest to take place without a boost from El Niño, scientists from U.S. and international agencies announced today. NASA says 2017 was the second warmest on record, with global temperatures at 0.90°C above a 1951–1980 average; the National Oceanic and Atmospheric Administration (NOAA) ranked it third, with temperatures at 0.84°C above the average for the entire 20th century. Overall, 17 of the 18 warmest years since 1880 have occurred since 2001, with the past three markedly warmer than the record-setters of the previous decade. That trend is in line with continued human-driven climate change; however, 2015 and 2016 got a boost from El Niño, the short-term Pacific Ocean weather pattern. The discrepancies in the NASA and NOAA rankings come down to both different baselines and differences in how researchers interpret temperature readings from limited weather stations across the Arctic, which has seen rapid warming in recent decades. The 2017 temperature estimates show the greatest spread in 3 decades, according to Berkeley Earth, a group of independent researchers that produced its own estimate. Notably, in their first year under President Donald Trump, NASA and NOAA released their estimates uncensored, despite the White House’s critical view of regulations and international deals meant to curb global warming.

 

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