Science

2016 was Earth's warmest year on record, worldwide report shows

2016 was Earth's warmest year on record, worldwide report shows”

The report is the most comprehensive assessment of climate change released by the Trump administration.

The Earth faced record warming for the third year in a row, the State of the Climate in 2016 worldwide report from the American Meteorological Society shows.

This document has not been made public, nor approved by the administration Trump.

"Climate change is one of the most pressing problems facing humanity and life on Earth must deal with it", write the authors of this reference report, available on the internet.

President Donald Trump judge the agreement "detrimental to the u.s. economy". The almost 500 authors convened by NOAA explain the effects that are due both to long-term global warming and shorter-term weather events like El Niño.

Combining historical temperature data and state-of-the-art climate model simulations, the new study finds the likelihood of experiencing consecutive record-breaking global temperatures from 2014 to 2016 without the effects of human-caused climate change is no greater than 0.03 percent and the likelihood of three consecutive record-breaking years happening any time since 2000 is no more than 0.7 percent. These scientists suggest that the country is already feeling a significant impact from climate change. EPA chief Scott Pruitt said his review could happen as soon as this fall.

The report is a sort of annual checkup on the Earth, compiled by NOAA and the American Meteorological Society out of data from researchers in 60 countries - and it found the fever the planet has been running in recent years hasn't broken yet. NOAA earlier this year released its annual Greenhouse Gas Index. The surface temperatures surpassed 2015 for the hottest year on record. The highest levels of greenhouse gases of the last 137 years were recorded during 2016.

Ardnt explained that NOAA doesn't specify what warming is from climate change and what is from weather events.

"With climate change, this is the kind of thing we would expect to see". The report is congressionally mandated every four years.

In addition to increased greenhouse gas concentrations the entire planet was also heating up. This marked the first time the concentration passed 400 ppm at any time in the last 800,000 years as measured by ice core records and direct measurements, according to NOAA. The average surface temperature of the planet has risen about 1.1 degrees Celsius (2.0 degrees Fahrenheit) since the late 19th century, and the past 35 years have seen a majority of the warming, with 16 of the 17 warmest years on record occurring since 2001, according to NASA.

- Sea levels are the highest they've ever been since recordkeeping began. It was 3.5 parts per million higher than the previous year, the biggest jump in the 58 years it has been recorded.

The melting of ice and polar ice caps, raised the level of the oceans to a new record of 82 millimetres above the average recorded in 1993.

- Precipitation cycles are becoming more extreme.

The Arctic is warming faster than lower latitudes.



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