The has been created in conjunction with , which houses clips about environmental issues, and will offer Tiscali users advice and tips on how to be more environmentally aware.
Tiscali said the portal would include tips on shopping, transport and money, as well as featuring user-generated content from Green.tv's archive of more than 600 environmentally focused clips and films.
Among the clips currently featured include tips on Fairtrade fashion, choosing fuel economic cars, recycling old mobile phones and saving water around the home.
Alex Hole, online media director at Tiscali UK, said: "The green content on our website has always been very popular and we recognise that the environment is a growing area of concern for many of our users.
"We are pleased to be able to offer advice on how to make a difference to the environment and the partnership with Green.tv also gives us the opportunity to expand on the wide range of excellent video content we are able to offer visitors to the Tiscali portal."