Biden made the remarks during a virtual meeting of the Major Economies Forum (MEF), a follow-up to an Earth Day meeting he hosted in April to unveil new U.S. greenhouse gas emissions reduction targets and press other countries to do more to curb theirs.

The United Kingdom heeded the call, with Prime Minister Boris Johnson pledging to be among the first signatories of the Global Methane Pledge to reduce emissions of the harmful gas.

Argentina, Indonesia, Italy and Mexico also joined the alliance, while Ghana and Iraq signaled interest in joining, according to a White House summary of the meeting, which noted those countries represent six of the top 15 methane emitters globally.

The U.N.’s Sustainable Development Goals set targets on everything from the environment to health and equality and have the support of all member states, yet the supply of finance from governments, investors, banks and companies to help meet them has consistently fallen short.Adding the costs of financing the global transition to a low-carbon economy to limit global warming, and total funding out to 2050 comes in at $200-$220 trillion, the report added. The SDGs are a global “to-do” list addressing such issues as war, hunger, land degradation, gender equality and climate.