The rally was to call attention to what scientist believe is unwarranted attacks by the incoming Trump administration against scientists advocating for the issue of climate change and its impact.
Promising to contribute $15 million to the United Nations climate change secretariat, the coalition's leader hopes to fill in the gap left behind by the US, proving that business leaders do not need approval from the president to ensure the deal is upheld.
Hawaii is joined by many other U.S. states and localities to declare that the Paris agreement would be honoured, with many governors and mayors signing executive orders or pledging to continue the fight.
Hawaii on Tuesday became the first state in the country with laws that implement portions of the Paris climate deal.
Hawaii has become the first U.S. state to formally adopt pledges in the Paris Agreement to drastically tackle climate change.
May's lead widens ahead of June 8 election - ORB poll
Ukip member Abigail Eatock won loud applause as she told the PM: "You said you wouldn't call an election and you did". May had said she was too busy "thinking about Brexit negotiations" and "meeting voters" to take part in the debate.
Some of the sharpest criticism came from California Gov. Failure to comply with the Paris accords won't bring back many miners' jobs, they say.
Trump's decision to scrap the Paris deal has left him isolated on the world stage and prompted a backlash at home, with several state governors, city mayors and powerful companies already drawing up plans to meet the pact's emission targets - without Washington's backing.
"Utah is warming at twice the global average, and our drinking water is at risk", said Biskupsi, saying she was acting "for the well-being of the planet I'm leaving to my sons and your children". "But the bottom line is that the Paris Accord is very unfair at the highest level to the United States", he said. Saving miners' jobs, though part of Trump's reasoning, is far from the only reason for USA officials to reject the Paris agreement.
Later, when asked by the AP what could prompt the U.S.to return to the forefront of climate change efforts, Brown replied, "Science, facts, the world, the marketplace".
The Paris Climate Accord is poorly written, favors the worst polluters (China/India) and will be extremely costly to every American taxpayer. China is by far the world's largest user of coal, which accounts for nearly two-thirds of its energy use and has made it the number one emitter of climate-changing greenhouse gases.