Ian Somerhalder Looking Hot In NYC And Details On His New Environmental Gig [PHOTOS]

Mmmh Ian Somerhalder.  So dreamy.  The Vampire Diaries stud met up with his lady, Nina Dobrev after she put everyone else to shame at the Met Costume Institute Ball in New York.  Dobrev stepped onto the red carpet in the most insanely beautiful Donna Karan Atelier dress on the Upper East Side, and later linked up with her studly boyfriend at the ball’s afterparty.

Earlier in the day, Somerhalder was spotted heading into his hotel,  a few days after it was announced that  he is now a United Nations Goodwill Ambassador for the Environment and promoter of the 40th World Environment Day (WED) challenge on June 5th, according to Care2.com.

Joined by WED 2011 Ambassadors Gisele Bundchen and Don Cheadle, Somerhalder will take to the internet to motivate the masses.  The day’s goal will be to challege “the web community to rally the most activities [for the environment] ever…and mobilize millions.” 

The actor and environmentalist also heads the Ian Somerhalder Foundation, created “to empower, educate and collaborate with people and projects to positively impact the planet and its creatures.”

Somerhalder looks to young people to help clean up the environment, calling them “the most powerful, yet disregarded, disrespected and overlooked population on the planet.”