Bob Iger. Photo by Rodin Eckenroth/FilmMagic

A wave of CEO departures was announced Tuesday, as the chief executives of Mastercard, Salesforce, Thomson Reuters and Disney all had notice of their impending departures made official.

The big picture: The incredibly high-profile turnover announcements are part of what has become an emergent trend at the top of U.S. businesses over the past year.

  • CEO turnover hit a record high in January, with outplacement firm Challenger, Gray & Christmas declaring the moves were "skyrocketing to start 2020."

Driving the news: Disney CEO and Ithaca College alumnus Bob Iger will move into an executive chairman role at the company and be replaced by parks and resorts chairman Bob Chapek effective immediately.

  • Salesforce Co-CEO Keith Block will step down, leaving Marc Benioff as the company's sole CEO.
  • Mastercard announced CEO Ajay Banga will move on at the start of next year and be replaced by chief product officer Michael Miebach.
  • Thomson Reuters announced CEO Jim Smith will be replaced by TPG senior adviser Steve Hasker, who formerly served as CEO of entertainment agency CAA and president of data firm Nielsen.

By the numbers: In January, 219 CEOs left their positions, a 37% increase from December when 160 CEOs departed.

  • January's new record high also was 27% higher than the previous monthly record of 172, which was set in October, according to Challenger, Gray & Christmas.

Of note: The timing of the announcements is odd, not just because four large companies announced them on the same day, but because they appear timed to drop while much of the public's attention is focused on the coronavirus outbreak.

Go deeper: Bob Iger stuns media world with sudden departure as Disney CEO

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The 53 countries supporting China's crackdown on Hong Kong

Saudi Crown Prince Mohammed bin Salman with Chinese President Xi Jinping. Photo: Rolex/Pool/Getty Images

China's foreign ministry and state media have declared victory after 53 countries joined a statement at the UN Human Rights Council supporting Beijing's new national security law for Hong Kong — compared to 27 who criticized the law.

The big picture: The list of 53 countries was not initially published along with the statement, but has been obtained by Axios. It is made up primarily of autocratic states, including North Korea, Saudi Arabia, Syria and Zimbabwe.

CO2 emissions may have peaked, but that's not enough

Reproduced from DNV GL; Chart: Axios Visuals

More analysts are making the case that COVID-19 could be an inflection point for oil use and carbon emissions, but it's hardly one that puts the world on a sustainable ecological path.

Driving the news: The risk advisory firm DNV GL, citing the pandemic's long-term effects on energy consumption, projects in a new analysis that global CO2 emissions "most likely" peaked in 2019.

U.S. economy added 4.8 million jobs in June

Data: Bureau of Labor Statistics; Chart: Axios Visuals

The U.S. economy added 4.8 million jobs last month, while the unemployment rate dropped to 11.1% from 13.3% in May, according to government data released Thursday.

The state of play: While the labor market showed more signs of recovery when the government’s survey period ended in early June, the lag means that more recent developments, like the surge in coronavirus cases and resultant closures in some states, aren't captured in this data.