Carbon dioxide emissions are on track to rise in 2018 for the second straight year following a plateau in 2014-2016, according to the International Energy Agency.

Why it matters: IEA's finding arrived as a United Nations science panel unveiled a major report concluding that large emissions cuts are needed in coming years to hold global warming to 1.5 degrees Celsius above preindustrial levels.

By the numbers: According to the UN's analysis, staying within the 1.5°C target — a benchmark for avoiding far more severe consequences than are already occurring — means human-induced CO2 emissions must fall by 45% by 2030 and reach "net zero" by mid-century.

  • The 45% cut is relative to 2010 levels, which in effect means even deeper reductions are needed.

The big picture: Separate analyses in recent months have shown that energy-related CO2 emissions — that is, the vast majority of global CO2 — ticked up again in 2017 after a multi-year plateau.

IEA's new 2018 projection underscores how the global energy system is far, far off track from the gigantic and rapid transformation that the UN's deeply researched analysis calls needed to stay within the 1.5°C target.

  • "The world is not moving towards Paris Agreement goals requiring emissions to peak as soon as possible, but away from them," IEA Executive Director Fatih Birol said via Twitter.

The bottom line: As Axios' Andrew Freedman wrote, global warming will have far more severe consequences if temperatures are allowed to creep past 1.5°C, or 2.7°F, of warming, scientists concluded in the UN analysis.

They noted that there are already deadly impacts from the 1°C, or 1.8°F, of warming so far — including more severe and longer lasting heat waves, more heavy precipitation events, and ocean warming that is killing many of the planet's coral reefs.

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Louisiana braces for 3rd hurricane in 2 months as Tropical Storm Zeta nears

Municipality workers clean the streets of garbage in Playa del Carmen, Mexico, on Tuesday that was left by Zeta, which struck the Yucatan Peninsula as a Category 1 Hurricane a day earlier — causing no major damage to infrastructure. Photo: Medios y Media/Getty Images

Tropical Storm Zeta is expected to strengthen back into a hurricane and bring dangerous storm surge conditions to parts of the northern Gulf Coast on Wednesday, per the National Hurricane Center.

The state of play: Louisiana Gov. John Bel Edwards (D) requested a pre-landfall Federal Declaration of Emergency in a letter to President Trump on Tuesday, ahead of the storm's expected arrival south of New Orleans.

Updated 1 hour ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Politics: Obama: Trump is "jealous of COVID's media coverage" Axios-Ipsos poll: Federal response has only gotten worse.
  2. Health: Hospitals face a crush — 13 states set single-day case records last week.
  3. Business: Winter threat spurs new surge of startup activity.
  4. Media: Pandemic causes TV providers to lose the most subscribers ever.
  5. States: Nearly two dozen Minnesota cases traced to three Trump campaign events.
  6. World: Putin mandates face masks.
1 hour ago - Technology

Trump's campaign website hacked

A screenshot of the Trump campaign website after it was hacked.

The Trump campaign website briefly went down and its "About" page was modified after hackers attacked the site Tuesday evening.

The big picture: With just seven days before the election, the hackers emulated the FBI and declared on the "About" page that: "this was seized. the world has had enough of the fake-news spreaded [sic] daily by president donald j trump. it is time to allow the world to know truth." Two addresses linked to the cryptocurrency Monero appeared on the site. Trump campaign spokesperson Tim Murtaugh in a statement said no sensitive data had been exposed in the attack.

Go deeper: Twitter hack raises fears of an unstable election