Biden's climate summit zeroes in on tech

·3-min read

US President Joe Biden has called on countries to work together on the transition to clean energy on the second and final day of a climate summit he is hosting that seeks to rally world ambition to reduce global warming.

"Nations that work together to invest in a cleaner economy will reap the rewards for their citizens," the Democratic president said at the virtual summit.

"The United States is committed, we are committed to making those investments to grow our economy here at home while connecting with markets around the world."

Biden called the meeting with dozens of heads of state to declare the US back at the climate leadership table after his predecessor former president Donald Trump withdrew from the Paris Agreement to cut greenhouse gas emissions.

Biden, who returned the United States to the 2015 pact, announced a new US target on Thursday to reduce its emissions 50-52 per cent by 2030 compared with 2005 levels.

Japan and Canada also raised their targets.

Bill Gates, a wealthy businessman-turned-philanthropist, said he was working with partners on a program called Breakthrough Energy Catalyst that would raise money from governments, philanthropists and companies to make capital investments to bring down the cost of clean technology.

"We can build new industries and companies that support communities around the world with good jobs on making the transition to the clean economy," said Gates, who has invested about $US2 billion ($A2.6 billion) toward the development of high tech electricity generation and storage.

Biden said he was "heartened" by a call by Russian President Vladimir Putin on Thursday for the world to collaborate on advanced carbon dioxide removal and that the US looked forward to working with Russia and other countries on the technology.

Jennifer Granholm, the US energy secretary, said clean technology was "our generation's moonshot" and that her department would be announcing new goals for "leaps in next generation technologies", such as carbon dioxide capture, energy storage and industrial fuels.

Underscoring the role for carbon removal technologies to meet global climate goals, Granholm announced a partnership with Canada, Norway, Qatar and Saudi Arabia called the Net Zero Producers Forum.

It aimed to develop "long-term strategies to reach global net-zero emissions", she said.

Granholm also announced an agreement with Denmark to partner on zeroing out emissions in the global shipping industry.

The White House has sought to assure other countries that it can meet the new US emissions target, even if a new administration takes over, because industry is moving toward cleaner power, electric vehicles and more renewable energy anyway.

"No politician, no matter how demagogic or how potent and capable they are, is going to be able to change what that market is doing," Biden's climate envoy John Kerry said.

Biden has sought to connect efforts to fight climate change with opportunities to create jobs, arguing that taking action will be good for the economy in order to counter Republican concerns that climate regulation could slow growth.

His $US2.3 trillion infrastructure package is integral to achieving the new US emissions target but requires approval by Congress, where Democrats hold only razor-thin majorities.