Boxer will begin the markup as planned Tuesday, but will extend the deadline for amendments until "the close of business" that day, allowing Republicans who have boycotted the process to participate past the original deadline.
In addition, Boxer said she'll pause the markup process tomorrow afternoon and invite an EPA official to come before the committee and answer any and all remaining questions about the cap-and-trade bill Republicans may have.
Boxer characterized the moves as magnanimous, aimed at offering a hand of friendship to Republicans who say they need more time to process the bill. She said the plan was agreed upon among all the Democrats sit on the environmental panel she chairs.
But one of those Democrats who joined her at the podium this evening seemed less interested in mending fences with upset Republicans.
"I'm a little less gracious than Barbara Boxer -- I believe you have to tell it like it is," Sen. Frank Lautenberg (D-NJ) said of the boycotters. "It's almost like they're school children over there."
Lautenberg said that Republicans were afraid to hold a vote on the bill, which he said would feature them voting against the environmental reforms like carbon emission capping Lautenberg claimed most Americans favor.
"Stop the nonsense, Dr. No's," he said. "This is not going to help our world."
Inhofe's office did not respond to a request for comment, and Republicans on the committee have not said if their plans for tomorrow have changed in light of Boxer's new concessions.