Here’s what’s on the schedule for the last day of Biden’s climate summit.

The final day of President Biden’s virtual climate summit is set to begin on Friday at 8 a.m., with a host of business leaders like Bill Gates and Michael R. Bloomberg scheduled to speak.

Here is a rundown of the biggest names and the topics they plan to address.

Which speakers should I watch for?

Energy Secretary Jennifer M. Granholm, Commerce Secretary Gina M. Raimondo and John Kerry, Mr. Biden’s climate envoy, will kick off the morning with a discussion on the importance of technological innovation in reducing carbon emissions. They’ll be joined by world leaders like Prime Minister Benjamin Netanyahu of Israel and representatives from energy companies.

Later in the morning, Transportation Secretary Pete Buttigieg, Katherine Tai, the U.S. trade representative, and Gina McCarthy, Mr. Biden’s top climate change adviser, will speak about the economic opportunities of climate action, with a focus on job creation. Top business executives and union leaders are expected to attend.

Mr. Gates, the Microsoft co-founder, will also speak as the leader of Breakthrough Energy, an investment fund that supports projects to reduce carbon emissions.

After the summit, senior Biden administration officials will attend a CNN town hall at 10 p.m. Eastern time to answer questions about how Mr. Biden plans to tackle climate policy. Mr. Kerry, Ms. McCarthy, Ms. Granholm and Michael S. Regan, the Environmental Protection Agency administrator, are set to speak.

Which global leaders are attending?

Prime Minister Pedro Sánchez of Spain, President Uhuru Kenyatta of Kenya, Prime Minister Mette Frederiksen of Denmark and Prime Minister Lee Hsien Loong of Singapore are expected to attend on Friday. The White House invited 40 world leaders over the course of the two-day summit.

Several prominent American allies spoke at the summit on Thursday, including Prime Minister Boris Johnson of Britain, Chancellor Angela Merkel of Germany and Prime Minister Narendra Modi of India.

What happened on the first day of the summit?

Mr. Biden pledged that the United States would cut its emissions 50 percent to 52 percent below 2005 levels by 2030. His administration also vowed to substantially increase the amount of money the nation offers to developing countries to address climate change.

Other world leaders also committed to cut emissions. Prime Minister Justin Trudeau said Canada would reduce its greenhouse gas emissions 40 percent to 45 percent from 2005 levels by 2030, escalating its previous goal of a 30 percent reduction in the same time period. And Prime Minister Yoshihide Suga of Japan promised to cut emissions 46 percent below 2013 levels by the end of the decade.

Some leaders, like President Vladimir V. Putin of Russia, made vague commitments. Mr. Putin vowed to “significantly reduce the net accumulated emissions in our country by 2050.” And President Jair Bolsonaro of Brazil pledged to eliminate illegal deforestation by 2030, which was met with skepticism by those in the environmental community.

Neither China nor India made any new commitments. President Xi Jinping repeated China’s pledge to draw down carbon emissions to net zero by 2060 and Mr. Modi reiterated India’s promise to install 450 gigawatts of renewable energy capacity by 2030.

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