continued
What's next
If Mr Trump quits the accord, Mr Dudley said before the decision was announced, "we need to be really clear - rather than just walking away from it - what you put in place in the United States".
Industrial concerns and Wall Street weren't alone in condemning Mr Trump's decision.
Microsoft president Brad Smith and blue-jeans manufacturer Levi Strauss & Co's Chip Bergh joined the chorus of displeased executives.
"We're disappointed with the decision to exit the Paris Agreement. Microsoft remains committed to doing our part to achieve its goals," Mr Smith tweeted.
✔@BradSmi
We’re disappointed with the decision to exit the Paris Agreement. Microsoft remains committed to doing our part to achieve its goals.
While Mr Trump, in defence of his action, said leaving the accord would save money and jobs, Mr Bergh and Salesforce.com chief executive Marc Benioff foresee a different outcome.
"Leaving the Paris Climate Accord puts us - and our US peers - at a huge disadvantage," Mr Bergh said in an emailed statement. Nonetheless, he added, "we will continue to pursue technologies that can reduce the apparel industry's environmental impact". Mr Benioff, meanwhile, pledged to double the company's efforts to combat climate change, saying he was "deeply disappointed".