EPA Administrator McCarthy’s top 10 greatest tweets

• Following a 136-day bid, McCarthy was finally confirmed as EPA administrator by a vote of 59-40 in the Senate on July 18, 2013. The next day, McCarthy exclaimed she was “thrilled” about her new job and that it was time to learn how to use Twitter.

• In April of 2014, McCarthy gave a pat on the back to outgoing Health and Human Services Secretary Kathleen Sebelius, who was stepping down after enduring a torrent of criticism for her role in overseeing the disastrous launch of healthcare.gov, which was marred by a flurry of technical flaws. McCarthy called her a “true public servant.”

• Prior to taking the stage and delivering a speech on the merits of the Clean Air Act at the 2014 Good Jobs, Green Jobs Conference, McCarthy tweeted, “It’s never been about choosing the [sic] between the economy and the environment — we can have both.” But Americans whose livelihoods depend on fossil fuels like coal have seen their livelihoods impacted by the strict new regulations of the Clean Power Plan, which seeks to reduce carbon emissions. One estimate shows industry annual compliance costs could reach $73 billion, causing electricity rates to rise more than 10 percent in 43 states, according to NERA Economic Consulting.

• Before throwing out the first pitch at a Boston Red Sox game in April of 2014, McCarthy received some pointers from MSNCB’s Mika Brzezinski.

• And the pitch: a “dream come true,” said the Boston native.

• In September 2014, actor Leonardo DiCaprio, a longtime environmental activist, was designated as a U.N. “Messenger of Peace” by U.N. Secretary General Ban Ki-moon, who called him a “new voice for climate advocacy.” McCarthy tweeted out her welcome to a new ally in the fight to protect the environment.

• Right on the heels of finalizing the Clean Water Act — a rule that aims to keep pollution water resources and expands the EPA’s jurisdiction over waterways — the Washington Examiner and several news outlets and reporters who regularly cover the EPA were excluded from a press briefing on the rule. Meanwhile, McCarthy and Jo-Ellen Darcy, assistant secretary for the Army for Civil Works with the U.S. Army Corps of Engineers, had a toast with some good clean water to celebrate.

• Speaking of good clean water, McCarthy wasn’t exactly quick to the draw when it came to reacting to the toxic spill in the West caused by an EPA contractor. On Aug. 5, in the Gold King Mine in Colorado, an EPA contractor ruptured a wall holding back millions of gallons of toxic wastewater and the resulting spill created a yellow plume of toxic sludge that flowed through the Animas and San Juan rivers in Colorado, New Mexico and Utah. The right-leaning American Action Forum estimates the cost to clean up the spill could exceed $27.7 billion.

The very next day, McCarthy’s first tweet since the incident, was a #TBT (throwback Thursday) to an interview she did with former “Daily Show” host Jon Stewart.

• An artist portrayed McCarthy as Rosie the Riveter under the slogan “EPA Can Do It,” and in another notable tweet, the EPA boss celebrated Independence Day by touting a 43-year-old DDT ban.