In his first few weeks, President Trump has frozen climate spending, shaken up staffing at agencies like the E.P.A. and set off a wave of legal challenges.

The former New York congressman has little experience in environmental policy. He is expected to follow orders to weaken climate rules.

Top political appointees are already at the E.P.A. preparing to erase the agency’s climate rules and pollution controls. Many of them have tried it before.

The imitation meat industry is facing an identity crisis, and the challenge of convincing American consumers to make more planet-friendly choices.

Mr. Zeldin, a Trump loyalist, would be charged with dismantling climate rules and perhaps the agency itself. He faced questions from the Senate Thursday.

Selections for attorney general, secretary of homeland security, secretary of state and Treasury secretary are among those set to have hearings this week.