There are many non-profit and government agencies out there who are working to protect and enhance the Cross Timbers region as well as educate the public on environmental sustainability.  Please visit their websites and offer support.

GOVERNMENT ENTITIES
City of Arlington
City of Denton
City of Flower Mound
City of Fort Worth, Parks & Community Services Department, Forestry Section
City of Fort Worth, Parks & Community Services Department, Botanic Garden
City of Fort Worth, Parks & Community Services Department, Nature Center & Refuge
City of Grand Prairie, Parks & Recreation
City of Mansfield
City of Plano
City of Southlake
City of Weatherford, Chandor Gardens
Texas Forest Service
U.S. Forest Service - Caddo/LBJ National Grasslands
Natural Resources Conservation Service
Lewisville Lake Environmental Learning Area

NON-PROFITS
Bob Jones Nature Center
Molly Hollar Wildscape
National Arbor Day Foundation
Citizen Foresters
Doug Pierson - A Natural History of North Central Texas
Great Plains Restoration Council
Streams & Valleys
Fort Worth Audubon Society
Fort Worth Sierra Club
The Nature Conservancy of Texas
Botanical Research Institue of Texas (BRIT)
Trinity Blackland Urban Forestry Council
International Society of Arboriculture - Texas
Texas Tree Trails
Tree Link
North Central Texas Birds

LANDOWNER/HOMEOWNER ASSISTANCE
Texas AgriLife Extension
Native American Seed Company
North Texas Renewable Energy Inc.
Noble Foundation
The Rainwell