[6] In 2006, Rothschild spent over 100 days crossing the Arctic from Russia to Canada, which saw him become one of only 42 people, and the youngest British person, to ever reach both geographical poles.

[7] He had already become one of only 14 people ever to traverse the continent of Antarctica, and was part of a team that broke the world record for the fastest ever crossing of the Greenland ice cap.

They focused on the fight against ocean pollution caused by plastic waste, aiming to educate coastal communities and society at large about the importance of preserving our seas.

[11] In the late 2000s, Rothschild developed a mission to raise awareness of the Pacific Garbage Patch, in which he invented a new form of sustainable ship at a lab on Pier 31 in San Francisco, called the Plastiki.

[12] In March 2010, de Rothschild launched the boat, a 60-foot (18 m) catamaran built from approximately 12,500 reclaimed plastic bottles and a unique recyclable technology called Seretex.

The Plastiki and its crew sailed over 8,000 nautical miles (15,000 km; 9,200 mi) across the Pacific Ocean from San Francisco to Sydney.

[13][14] The evening before their journey began, Rothschild and his skipper Jo Royle interviewed with CNN, quoting Mark Twain when asked how he felt in anticipation for the trip.

"[20] In 2009, New Yorker correspondent John Colapinto wrote about the Plastiki, comparing its creator, Rothschild, to adventurers such as Sir Richard Francis Burton and Sebastian Snow.

[19] As part of Adventure Ecology's ARTiculate series, de Rothschild led a field trip expedition to the Ecuadorian Amazon in 2007.

[21] In November 2011, de Rothschild and a small crew mounted an expedition to Brazil's Amazon rainforest as part of the ARTiculate series, with the goal of better understanding and publicizing the effects of the controversial Belo Monte dam project.

[22] When asked by Outside Magazine reporter Caty Enders about whether an expedition could make a difference in a pressing issue like the Belo Monte dam de Rothschild replied that "it would be naïve to think that this mini art-based adventure into the Amazon is going to change what has been in motion for the last 36 years.

[29] De Rothschild also founded Mpact, which focuses on teaching corporations and organizations on how to access the most zealous community contributors and volunteers, and how to provide them with the tools they need to succeed on their behalf.

[citation needed] In 2012, de Rothschild developed Eco Trip: The Real Cost of Living, an eight part series on the production methods behind household items and the impact their use has on the environment.