Both Goldsmith and Tittel point to Jackson's work on climate change as an example of why she would make a great EPA chief.
Last year, Corzine signed the Global Warming Response Act, which aims to cut greenhouse gases in New Jersey 20 percent by 2020 and 80 percent by 2050.
"Lisa worked closely with the governor to champion this bill, and helped lobby the legislature to approve it," says Dena Mottola, executive director of Environment New Jersey.
But Ruch argues that the New Jersey environment department under Jackson's tenure failed to meet crucial deadlines for drafting procedures to actually implement the law.
"As a result, despite much ballyhoo, New Jersey does not have a coherent game-plan for achieving its climate change goals," Ruch wrote in a letter to President-elect Obama (PDF), opposing Jackson's nomination.
Again, New Jersey environmentalists come to Jackson's defense.
"No one worked more on this issue than my group, and if we thought missing that deadline was a huge concern we would have criticized it, and we didn't," says Mottola.
Eric Stiles, vice president for conservation at the New Jersey Audubon Society, said that while Jackson's record isn't perfect, she has always been receptive to his group's arguments and straightforward about her positions and the competing interests she was considering.
"She really took on some big issues and big battles and moved it forward in New Jersey," says Stiles. "Did she do everything I would have hoped for? No. But probably everything I would've hoped for was unreasonable."
Joaquin Sapien is an investigative reporter for ProPublica, an independent, non-profit newsroom that produces journalism in the public interest.