Tides' Thoreau Center for Sustainability are

green Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 Nanometre, nm. In subtractive color systems, used in painting and color printing, it is created by ...

nonprofit A nonprofit organization (NPO) or non-profit organisation, also known as a non-business entity, not-for-profit organization, or nonprofit institution, is a legal entity organized and operated for a collective, public or social benefit, in co ...

centers that house more than 70

organizations in

San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...

and

New York City New York, often called New York City or NYC, is the List of United States cities by population, most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the L ...

. Thoreau Centers for Sustainability are operated by Tides Shared Spaces, a

Tides Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon (and to a much lesser extent, the Sun) and are also caused by the Earth and Moon orbiting one another. Tide tables can ...

initiative.

History

In 1994, the Thoreau Center for Sustainability was proposed to The Presidio Trust in

, California and opened in 1996. It is an

adaptive reuse Adaptive reuse refers to the process of reusing an existing building for a purpose other than which it was originally built or designed for. It is also known as recycling and conversion. Adaptive reuse is an effective strategy for optimizing the o ...

of the

Letterman Army Hospital The Letterman Army Hospital, established around 1898 and redesignated as the Letterman Army Medical Center (LAMC) in 1969, was a US Army facility at the Presidio of San Francisco in San Francisco, California, US. It was decommissioned in 1994. ...

. In 2006, a Thoreau Center for Sustainability opened in Lower Manhattan, New York.

References

External links

Thoreau Centers for Sustainability homepageTides homepage
Sustainability organizations Environmental organizations based in California Non-profit organizations based in San Francisco Environmental organizations established in 1994 1994 establishments in California Environmental organizations established in 2006 2006 establishments in New York City {{nonprofit-org-stub