US states, cities and businesses signed up to ‘America’s pledge’ to combat global warning have a combined economic power equal to the world’s third-biggest economy

The US states, cities and businesses that have signed up to reduce greenhouse gas emissions despite president Donald Trump’s threats to withdraw from the Paris agreement would, if put together, have the clout of the world’s third biggest economy, after the US and China.

To date, 20 US states and more than 50 of its largest cities, along with more than 60 of the biggest businesses in the US, have committed to emissions reduction goals.

Added together, they have an economic power of about $10tn, placing this group behind only the US as a whole ($18.6tn) and China ($11tn) in terms of GDP.

On Saturday at the Bonn conference on climate change, these groups joined together to make “America’s pledge”, a commitment to combat global warming, in stark opposition to the Trump administration.

“This is very powerful,” said Paul Bodnar, a former lead negotiator at the climate talks for the US under Barack Obama. “These states and cities would be larger than 195 out of the 197 countries signed up to the Paris agreement.”

Michael Bloomberg, the former mayor of New York, led the group in vowing to take measures, such as reducing coal-fired power and investing in renewable energy and efficiency, which would substantially reduce their carbon output.

But some delegates want the companies and local governments involved to go further, by submitting reports on their progress towards their emissions-cutting goals to be subject to the kind of monitoring and accountability that is required from national governments under the UN process. They have put forward a draft text which, if accepted, would mean such voluntary commitments were made in line with UN standards, and could therefore be included in the national greenhouse gas inventories required from countries.

Kevin Conrad, of Papua New Guinea, told the Guardian: “We welcome their contributions, but they should be accountable [on their progress in meeting their voluntary goals]. Will they be willing to be reviewed on their results, not just on the blather?”

He said the draft text was aimed at giving these contributions “a legitimacy” under the UN’s rules. “They should be transparent,” he said. “We do not want to pre-judge America’s Pledge, we just want rigour on the results.”

The group’s commitments fall outside the pledges under the landmark 2015 Paris agreement, and are likely to fall short of the requirements on carbon-cutting under the pact. Trump has vowed to withdraw the US from this agreement, the first to bind developed and developing countries to a specific temperature goal.

At the Bonn COP23 talks, scheduled to continue to the end of the week, nations are discussing how to improve their pledges on cutting carbon in line with scientific advice. Under the Paris agreement, they must hold global temperature rises to no more than 2C, which scientists say is the limit of safety, beyond which climate change is likely to become catastrophic and irreversible.



Current pledges under the Paris agreement are inadequate to reach this goal and it is estimated they would bring the world to 3C of warming, which would cause drastic changes in sea level rises, bring droughts and floods to many areas of the world, and make agriculture impossible in huge swaths of the globe.

However, consensus on how to strengthen the pledges is proving elusive, and is unlikely to be finalised at these talks.



Meanwhile, the Trump White House has indicated its priorities, to the consternation of many delegates, by scheduling a meeting at the talks focusing on the future of coal and how its use can be continued with new technologies.

The America’s Pledge report will be released in the alternative US headquarters at the talks, the US Climate Action Center. The giant inflatable dome sits on the edge of the conference – which many of its supporters claim is a sign of its endorsement as a semi-official player.

Despite the geographical proximity of the “America’s Pledge” delegation, there are limits to what non-state actors can do. They are excluded from many of the technical talks and cannot tap into federal funds that states use to finance commitments to slow climate change or reduce its impacts. More importantly, it is harder for them to set a course for the country.

But while that is missing, Antha Williams, head of the Bloomberg Philanthropies environment team, said it was necessary to fill the void.

“It would be better if we saw leadership from the White House, but the overarching point is that cities, states and companies that represent more than half of the US are showing their support for climate action.”

Nick Nuttall, communications chief of UN Climate Change, said the organisers were willing to work constructively with non-state actors.

“We are extremely supportive of the whole mass of cities, states and territories who have been aligning themselves with the Paris agreement,” he said. “American cities and states have been very active, which is welcome – and it mirrors what is happening elsewhere in the world.”

His comments were echoed by several delegates.

“We don’t turn a blind eye to anyone,” said Antonio Marcondes, the chief negotiator for Brazil. “We talk to the federal government and we have been approached by non-state bodies. Our policy is that we are willing to work with anyone who can move this process forward.”

But some climate activists warned against expecting too much from the America’s Pledge team.

Thanu Yakupitiyage, of the NGO 350.org said the climate pledges by many mayors and governors were a welcome step, but she urged still greater ambition and concrete policies to phase out fossil fuels.

“America’s Pledge is a start and we’ll be holding our elected officials, including governor Jerry Brown, to his word. As we look towards the climate summit that the governor has announced for 2018, we want more than words; we want a tangible action plan and steps taken,” she said.