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Illustration: Sarah Grillo/Axios

Uber's big new IPO prospectus touts the company's green ambitions as it prepares for its multibillion dollar offering — and acknowledges that environmental policy is a risk factor.

Why it matters: Uber is going public amid growing scrutiny of ride-hailing's carbon footprint as research shows it can boost emissions by cannibalizing mass-transit and increasing miles driven.

Threat level: A line tucked into the global company's filing with securities regulators caught my attention. In the lengthy section about various risks, Uber acknowledges...

"[B]ecause a substantial portion of our business involves vehicles that run on fossil fuels, laws, regulations, or governmental actions seeking to curb air pollution or emissions may impact our business."

Where it stands: The filing says Uber aspires to play a "meaningful role in creating a sustainable, low-carbon future and addressing environmental challenges."

  • "We believe that a transportation system based on personal car use is inefficient and unsustainable," it states.
  • The document touts several of the company's environmental and anti-congestion initiatives in the U.S. and internationally.
  • For instance, it notes work with regulators in German cities to deploy electric vehicles and dockless electric bikes.

Between the lines: The role of ride-hailing and new mobility services generally is something of a wildcard in the future of urban carbon emissions.

  • A number of experts say it's increasingly important for regulators to take more steps to ensure the explosive growth of ride-hailing doesn't bring a corresponding jump in CO2.
  • Transportation is already the largest source of U.S. greenhouse gas emissions.

What they're saying: Populus CEO Regina Clewlow, whose company provides a transportation data analytics platform for local governments, says it's up to cities to keep the environmental effects of mobility companies in check.

  • "[C]ities need to require access to data from mobility operators, as well as invest in their own data collection efforts to measure the impacts of Uber and other services," she adds.

Go deeper:

Go deeper

Massachusetts Gov. Charlie Baker will not seek re-election in 2022

Massachusetts Gov. Charlie Baker (R) speaking during a press conference in November 2021. Photo: Jonathan Wiggs/The Boston Globe via Getty Images

Massachusetts Gov. Charlie Baker (R), a moderate who typically ranks as one of the nation's most popular governors, said Wednesday that he and Lt. Gov. Karyn Polito (R) will not seek third terms in 2022.

Why it matters: The decision leaves the gubernatorial race wide open and will likely affect multiple down-ballot races next year. Baker was expected to be the front-runner had he joined the race.

3 hours ago - Health

CDC prepares tougher testing rules for international travelers

Travelers with their luggage arrive at a COVID-19 testing location at the airport in Los Angeles, Calif., on Nov. 23, 2021. Photo: Frederic J. Brown/AFP via Getty Images

The Centers for Disease Control and Prevention said Tuesday night that it is working to impose stricter testing requirements for international travelers due to the spread of the new Omicron variant.

The big picture: The new rules would require all international travelers, regardless of vaccination status, to show a negative test taken a day before their flight to the U.S. Currently, the CDC says fully vaccinated travelers are allowed to show a test taken no more than three days before their departure, AP reports.

Republicans threaten to shut down government over vaccine mandates

Sen. Mike Lee (R-Utah) in the Capitol in November 2020. Photo: Joshua Roberts/Getty Images

Conservative Republicans in the House and Senate are planning to force a government shutdown Friday to deny funding needed to enforce the Biden administration's vaccine mandates on the private sector, according to Politico.

Why it matters: Congress has until the end of the week to pass a stopgap measure to extend funding into 2022, though objection from a small group of Republicans could shut down the government.