2017 State of the Climate Report Released by NOAA

news image
Special Stories
2 Aug 2018 7:28 AM
[Number of hot days each year since 1950 relative to the 1961-1990 baseline, from the Bulletin of the American Meteorological Society and NOAA’s National Centers for Environmental Information] 2017 was the third-warmest year on record for the globe, according to the 28th annual State of the Climate report released on Wednesday. Last year was behind 2016 (first) and 2015 (second). The planet also experienced record-high greenhouse gas concentrations as well as rises in sea level.

The annual checkup for the planet, led by scientists from NOAA’s National Centers for Environmental Information and published by the Bulletin of the American Meteorological Society, is based on contributions from more than 500 scientists in 65 countries and offers insight on global climate indicators, extreme weather events and other valuable environmental data.

Notable findings from the international report include:

  • Levels of greenhouse gases were the highest on record. Major greenhouse gas concentrations in the atmosphere – including carbon dioxide (CO2), methane and nitrous oxide – reached new record highs. The 2017 average global CO2 concentration was 405 parts per million, the highest measured in the modern 38-year global climate record and records created from ice-core samples dating back as far as 800,000 years.

  • Sea level rise hit a new high – about 3 inches (7.7 cm) higher than the 1993 average. Global sea level is rising at an average rate of 1.2 inches (3.1 cm) per decade.

  • Drought dipped and then rebounded. The global area of drought fell sharply in early 2017 before rising to above-average values later in the year.

  • Arctic maximum sea ice coverage fell to a record low. The 2017 maximum extent (coverage) of Arctic sea ice was the lowest in the 38-year record. The September 2017 sea ice minimum was the eighth lowest on record, 25 percent smaller than the long-term average.

  • The Antarctic also saw record-low sea ice coverage, which remained well below the 1981-2010 average. On March 1, 2017, the sea ice extent fell to 811,000 square miles (2.1 million square kilometers), the lowest observed daily value in the continuous satellite record that began in 1978.

  • Unprecedented multiyear coral reef bleaching continued: A global coral bleaching event spanned from June 2014 through May 2017, resulting in unprecedented impacts on reefs. More than 95 percent of coral in some affected reef areas died.

  • The total number of tropical cyclones were slightly above average overall.There were 85 named tropical cyclones in 2017, slightly above the 1981-2010 average of 82 storms.

You can read more highlights and the full report at this link from NOAA. Info from NOAA and AMS Edited for WeatherNation by Meteorologist Mace Michaels
All Weather News
More
Flossie Reaches Category 2 Strength

Flossie Reaches Category 2 Strength

EASTERN PACIFICThe National Hurricane Center

1 Jul 2025 11:20 PM
Western Heat Continues With Some Relief

Western Heat Continues With Some Relief

A large dome of hot high pressure remains acr

1 Jul 2025 11:00 PM
NHC Monitoring Front in the Southeast Ahead of 4th of July

NHC Monitoring Front in the Southeast Ahead of 4th of July

SOUTHEAST - A frontal boundary moving through

1 Jul 2025 10:35 PM
Severe Storms For the East Coast Through Tuesday

Severe Storms For the East Coast Through Tuesday

A cold front is tapping into a moist air mass

1 Jul 2025 10:20 PM
Where Rain Could Dampen Holiday Travel Plans

Where Rain Could Dampen Holiday Travel Plans

AAA is expecting over 70 million travelers to

1 Jul 2025 4:35 PM
Severe Weather Threat Continues in the Midwest

Severe Weather Threat Continues in the Midwest

It has been an active, severe season across t

30 Jun 2025 9:00 PM
Thunderstorms Possible in the Southeast Overnight

Thunderstorms Possible in the Southeast Overnight

SOUTHEAST - Strong thunderstorms have develop

28 Jun 2025 2:40 AM