Somerhalder was involved in the cleanup after the Deepwater Horizon oil drilling disaster on April 22, 2010.
His efforts included cleaning of oiled wildlife and taping public service announcements to let the public know how they could help.
Somerhalder also supports the St. Tammany Humane Society, an organization for animal shelter and welfare.
On November 13, 2010, he hosted a Bash on the Bayou charity fundraiser for the Society.
During the event, Somerhalder was presented with a donation of $11,100 by The Vampire Diaries fandom for his birthday project.

Together with his The Vampire Diaries co-stars Candice Accola and Michael Trevino, Somerhalder supports the It Gets Better Project, which makes it a goal to prevent suicide among LGBT youth associated with The Trevor Project.
For his second campaign, Somerhalder teamed up with The Vampire Diaries co-star Paul Wesley to release a limited edition shirt designed by a fan, with the words "Blood Brothers Since 1864."
This campaign sold almost 10,000 shirts.

On December 8, 2010, Somerhalder's 32nd birthday, he launched the "Ian Somerhalder Foundation" which he hopes will educate people on the importance of protecting the environment and animals: "Instead of gifts this year, my birthday wish is that we come together and raise funds to support projects that protect our habitat and nurture our furry friends.
He opposes GMO foods and factory farming, and supports ecologist Allan Savory in his crusade to let cows graze in sync with nature to enrich soil, enhance biodiversity, and reverse climate change.
In 2011 Somerhalder visited Savory in Africa and announced he was making a documentary about him with the goal of winning him a Nobel Prize.

Somerhalder is also a celebrity campaigner for RYOT, a Los Angeles-based media company known for RYOT.org, its cause-based, take action online news source.
Somerhalder was involved in the cleanup after the Deepwater Horizon oil drilling disaster on April 22, 2010. His efforts included cleaning of oiled wildlife and taping public service announcements to let the public know how they could help. Somerhalder also supports the St. Tammany Humane Society, an organization for animal shelter and welfare. On November 13, 2010, he hosted a Bash on the Bayou charity fundraiser for the Society. During the event, Somerhalder was presented with a donation of $11,100 by The Vampire Diaries fandom for his birthday project.
Together with his The Vampire Diaries co-stars Candice Accola and Michael Trevino, Somerhalder supports the It Gets Better Project, which makes it a goal to prevent suicide among LGBT youth associated with The Trevor Project. For his second campaign, Somerhalder teamed up with The Vampire Diaries co-star Paul Wesley to release a limited edition shirt designed by a fan, with the words "Blood Brothers Since 1864." This campaign sold almost 10,000 shirts.
On December 8, 2010, Somerhalder's 32nd birthday, he launched the "Ian Somerhalder Foundation" which he hopes will educate people on the importance of protecting the environment and animals: "Instead of gifts this year, my birthday wish is that we come together and raise funds to support projects that protect our habitat and nurture our furry friends. He opposes GMO foods and factory farming, and supports ecologist Allan Savory in his crusade to let cows graze in sync with nature to enrich soil, enhance biodiversity, and reverse climate change. In 2011 Somerhalder visited Savory in Africa and announced he was making a documentary about him with the goal of winning him a Nobel Prize.
Somerhalder is also a celebrity campaigner for RYOT, a Los Angeles-based media company known for RYOT.org, its cause-based, take action online news source.
Ian Somerhalder