I'm researching Bill McKibben's environmental work. Could you tell me what Third Act and 350.org are, based on his website? Also, find the earliest media appearance listed on his site, including its date, title, and the media outlet.
Navigate to the 'bio' page. Identify and extract the description of Third Act. Identify and extract the description of 350.org. Navigate to the 'media' page. Locate the earliest dated media appearance. Extract the date, title, and media outlet of this earliest appearance.
States that Third Act 'organizes people over the age of 60 for action on climate and justice'. States that 350.org was 'the first global grassroots climate campaign' and played a role in 'launching the opposition to big oil pipeline projects like Keystone XL, and the fossil fuel divestment campaign'. Identifies the earliest media appearance as 'Feb 13, 2012, Colbert Report: The Keystone XL Oil Pipeline'.