House expected to pass COVID relief bill next week

Biden spoke to Texas Gov. Greg Abbott about the severe weather situation in Texas, according to a readout released by the White House Thursday night. Biden offered his support to the people of Texas during the call.

"He reiterated that the federal government will continue to work hand-in-hand with state and local authorities in Texas to bring relief and address the critical needs of the families affected," the White House readout said. "He also shared his intentions to instruct additional federal agencies to look into any immediate steps that could be taken to support Texans at this time."

Biden makes his first appearance on the world stage Friday morning when he participates in a virtual G-7 conference and delivers remarks at a virtual Munich Security Conference.

The president plans to announce that the United States will contribute a total of $4 billion to a U.N.-backed program seeking to distribute COVID-19 vaccine doses to people in the poorest countries in the world, according to senior administration officials.

Biden will later travel to Kalamazoo, Michigan, to tour a Pfizer vaccine manufacturing plant and deliver remarks in a trip that was postponed Thursday due to weather. This will be Biden's second domestic trip and is part of his effort to take his pitch for COVID-19 relief on the road.

-ABC News' Ben Gittleson and Molly Nagle

The United States officially rejoined the Paris Agreement on Friday.

Biden signed a memo on his first day in office as president initiating the country's re-entry into the climate accord -- a process that takes 30 days.

"The Paris Agreement is an unprecedented framework for global action. We know because we helped design it and make it a reality," U.S. Secretary of State Antony Blinken said in a statement Friday. "Now, as momentous as our joining the Agreement was in 2016 -- and as momentous as our rejoining is today -- what we do in the coming weeks, months, and years is even more important."

To celebrate the move, Biden's special envoy for climate change, John Kerry, will hold four events on Friday, including with United Nations Secretary-General Antonio Guterres.

The U.S. has not yet offered specifics around its re-entry. There has been no announcement about new financial support, U.S. climate financing or what will be the country's target emission reductions under the deal, known as its Nationally Determined Contribution.

The U.S. became the first country in the world to formally withdraw from the Paris Agreement in November, more than three years after former President Donald Trump announced the move.

"Climate change and science diplomacy can never again be 'add-ons' in our foreign policy discussions," Blinken said. "Addressing the real threats from climate change and listening to our scientists is at the center of our domestic and foreign policy priorities."

-ABC News' Conor Finnegan

The State Department has announced the U.S. is "ready" to accept talks with Iran and the other remaining parties of the Iran nuclear deal "to discuss a diplomatic way forward on Iran's nuclear program," according to spokesperson Ned Price.

The EU's deputy foreign affairs official Enrique Mora tweeted earlier Thursday that the body was ready to play facilitator again and host Iran and the P5+1 -- the permanent members of the UN Security Council and Germany, who negotiated the nuclear deal, formally known as the Joint Comprehensive Plan of Action, or JCPOA.

The announcement from Price comes after Secretary of State Antony Blinken met Thursday morning with his French, British, and German counterparts and presented a unified front on the way forward on Iran. In a statement, they notably agreed that Iran must return to compliance with the nuclear deal and then negotiate with the parties to "strengthen the JCPOA" and "address broader security concerns related to Iran's missile programs and regional activities" -- something Iran says it won't do.

The Biden administration is also rescinding moves by former President Donald Trump to restrict Iran at the United Nations. As a gesture of good will, it is easing the travel restrictions on Iran's diplomats in New York and withdrawing the Trump position that the U.S. had snapped back U.N. sanctions.

Offering to meet -- and that potential first meeting -- "may not necessarily be a breakthrough," said one official on a briefing call with reporters. "We're not going to hype it for what it isn't. But it is a step. Until we sit down and talk, nothing's going to happen. ... But if we don't take that step, the situation is going to go from bad to worse."

-ABC News' Conor Finnegan