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Planet's Hottest Year on Record

Crews battle a wildfire near Mariposa Calif. on July 18. Officials say the record rain and snowfall that ended California’s five-year drought has turned into a challenge for firefighters battling flames feeding on dense vegetation

"2016 was a year in the Arctic like we've never seen before", Jeremy Mathis, director of the National Oceanic and Atmospheric Administration's Arctic research program and an author of the report, said.

The New York Times was forced to issue a correction on Wednesday after a much-hyped report on the Trump administration supposedly attempting to hide a climate change report didn't live up to the expectations they claimed. But the link between global change and human activity is not detailed in the study. In its latest reporting of a so-called leaked climate assessment the New York Times relies on exaggerated statements and false allegations of cover-ups in order to push an agenda.

Scientists expected 2017 to be a bit cooler than 2016 because of the passing of last year's El Nino warming cycle, but so far it's been only slightly cooler, making the first half of the year the second-warmest January-June period on record.

President Trump has called climate change a "hoax" and his administration plans to soon host a public debate over the science supporting human-caused climate change.

One of the biggest concerns with climate change is curbing global carbon emissions but the NOAA publication shows that global greenhouse gas emissions - including carbon dioxide, nitrous oxide, and methane - already surpassed 2015 levels.

The report was published in partnership with the NOAA's National Centers for Environmental Information, another government agency which describes itself as the US' leading authority for environmental information, and the American Meteorological Society.

Sea-level rise is expected to be worse in the Northeast and along the Gulf of Mexico, in part because the land in those regions is naturally subsiding.

Winter sea ice locking in Nome for the winter. What's more, it ties several recent extreme weather events to that temperature rise.

A total of 468 scientists from 64 countries who worked on the report concluded: "Major indicators of climate change continued to reflect trends consistent with a warming planet".

The report also included a graphic (click image for version) that highlighted the impact such metrics had throughout the globe, from severe wildfires in Canada to sweltering heat in India. In fact, 2016 saw the "largest annual increase observed in the 58-year record" compared to 2015, the report said.

"This does not say that every extreme can or should be blamed on climate change, but some events are linked, with high confidence", Alley added.

Walsh said, whatever fears scientists might have, he's seen no political interference in the report to date.

Meanwhile global sea level reached new highs past year and was on average about 82 mm (3.25 inches) higher than the 1993 level.

NOAA report co-editor Deke Arndt said the only notable normal global measure in 2016 was snow cover in the Northern Hemisphere.

- Sea levels are the highest they've ever been since recordkeeping began. Glaciers shrunk an average of 2.8 feet. In 2016, the average global temperature across land and ocean surface areas was 0.94 degrees Celsius (1.69 degrees Fahrenheit) above the 20th century average of 13.9 degrees Celsius (57.0 degrees Fahrenheit), according to NOAA.