Sep 23, 2019

UN report: Climate change causes and impacts are increasing

Children on melting ice at the climate-change impacted illage of Napakiak on the Yukon Delta in Alaska in April. Photo: Mark Ralston/AFP/Getty Images

As world leaders gather in New York City for the United Nations Climate Action Summit Monday, a UN report warns climate change is accelerating — with the Earth on track for the warmest 5-year period on record.

"Climate change causes and impacts are increasing rather than slowing down. Sea level rise has accelerated and we are concerned that an abrupt decline in the Antarctic and Greenland ice sheets, which will exacerbate future rise. As we have seen this year with tragic effect in the Bahamas and Mozambique, sea level rise and intense tropical storms led to humanitarian and economic catastrophes."
— World Meteorological Organization Secretary-General Petteri Taalas

The big picture: Data compiled by the World Meteorological Organisation for the report, to be presented to the UN summit, shows the average global temperature for 2015–2019 is on course to be the warmest of any equivalent period on record.

  • "It is currently estimated to be 1.1°Celsius (± 0.1°C) [about 2°F] above pre-industrial (1850–1900) times," the UN said in a statement accompanying the "United in Science" report.
  • To stop a global temperature rise of more than 2 degrees Celsius above pre-industrial levels and meet the goals of the 2015 Paris climate agreement, countries must triple climate emission cut targets, the report warns.

Key findings:

  • Accelerating climate impacts from melting ice caps to sea-level rise and extreme weather are responsible for the warming, researchers say, with the global average temperature increasing 1.1°C above pre-industrial (1850-1900) times and 0.2°C (or .36°F) warmer than 2011-2015.
  • Carbon dioxide concentrations in the atmosphere increased at a higher rate in the 2015-2019 period than in the previous 5 years and are on course to reach a record 410 parts per million this year.
  • Sea levels have risen an average of 5mm (0.2 inches) a year in the past 5 years, compared to 3.2mm (0.13 inches) a year on average since 1993, and much of the increase is from melting glaciers and ice sheets.
  • The Antarctic ice sheet's annual ice losses increased at least 6-fold, from 40 gigatonnes (Gt) per year in 1979-1990 to 252 Gt per year in 2009-2017.

What they're saying: WMO Secretary-General Petteri Taalas, who is co-chair of the Science Advisory Group of the UN Climate Summit, said in a statement it's important that we reduce greenhouse gas emissions, "notably from energy production, industry and transport" if we're to tackle the issue effectively.

  • "To stop a global temperature increase of more than 2 degrees Celsius above pre-industrial levels, the level of ambition needs to be tripled," he said. "And to limit the increase to 1.5 degrees, it needs to be multiplied by 5."

The other side: UN Secretary General António Guterres said he's hopeful of avoiding a climate catastrophe after seeing "new momentum" from countries and businesses pledging to act to meet targets, along with the rise of a global climate movement led by young people, the Guardian reports.

Go deeper:

Correction: This article has been updated to fix the conversions from Celsius to Fahrenheit. The original version stated that 1.1°Celsius = 34°F, instead of the correct 1.98°F.

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The wreckage of summer

Illustration: Sarah Grillo/Axios

We usually think of Memorial Day as the start of the summer, with all of the fun and relaxation that goes with it — but this one is just going to remind us of all of the plans that have been ruined by the coronavirus.

Why it matters: If you thought it was stressful to be locked down during the spring, just wait until everyone realizes that all the traditional summer activities we've been looking forward to are largely off-limits this year.

Coronavirus dashboard

Illustration: Aïda Amer/Axios

  1. Global: Total confirmed cases as of 3 a.m. ET: 5,410,228 — Total deaths: 345,105 — Total recoveries — 2,169,005Map.
  2. U.S.: Total confirmed cases as of 3 a.m. ET: 1,643,499 — Total deaths: 97,722 — Total recoveries: 366,736 — Total tested: 14,163,915Map.
  3. World: White House announces travel restrictions on Brazil, coronavirus hotspot in Southern Hemisphere Over 100 coronavirus cases in Germany tied to single day of church services — Boris Johnson backs top aide amid reports that he broke U.K. lockdown while exhibiting symptoms.
  4. Public health: Officials are urging Americans to wear masks headed into Memorial Day weekend Report finds "little evidence" coronavirus under control in most statesHurricanes, wildfires, the flu could strain COVID-19 response
  5. Economy: White House economic adviser Kevin Hassett says it's possible the unemployment rate could still be in double digits by November's election — Public employees brace for layoffs.
  6. Federal government: Trump attacks a Columbia University study that suggests earlier lockdown could have saved 36,000 American lives.
  7. What should I do? Hydroxychloroquine questions answeredTraveling, asthma, dishes, disinfectants and being contagiousMasks, lending books and self-isolatingExercise, laundry, what counts as soap — Pets, moving and personal healthAnswers about the virus from Axios expertsWhat to know about social distancingHow to minimize your risk.
  8. Other resources: CDC on how to avoid the virus, what to do if you get it, the right mask to wear.

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Updated 5 hours ago - Politics & Policy

U.S. coronavirus updates

Data: The Center for Systems Science and Engineering at Johns Hopkins; Map: Andrew Witherspoon/Axios. This graphic includes "probable deaths" that New York City began reporting on April 14.

The CDC is warning of potentially "aggressive rodent behavior" amid a rise in reports of rat activity in several areas, as the animals search further for food while Americans stay home more during the coronavirus pandemic.

By the numbers: More than 97,700 people have died from COVID-19 and over 1.6 million have tested positive in the U.S. Over 366,700 Americans have recovered and more than 14.1 million tests have been conducted.