Tree canopy covered about 41% of Austin's land in 2022 (160,047 of 395,038 acres), up from 36% measured in 2018, though annexation and better mapping explain part of the gain.

City of Austin Urban Forest Program, Tree Canopy 2022 dataset (Open Data Portal), 2022

Austin's Climate Equity Plan sets a goal of at least 50% citywide tree canopy cover by 2050, with growth focused on under-canopied neighborhoods.

City of Austin, Austin Climate Equity Plan, 2021

Austin has an estimated 33.8 million trees, and tree canopy covered 30.8% of the city in the 2014 Urban Forest Inventory and Analysis; Ashe juniper, cedar elm and live oak are the most common species.

Nowak et al. 2016, Austin's Urban Forest, 2014, USDA Forest Service Resource Bulletin NRS-100, 2014

Austin-based nonprofit TreeFolks has planted more than 3 million trees in Central Texas and distributes 4,500 free trees a year with the City through NeighborWoods.

TreeFolks, 2026

Austin's trees store about 1.9 million tons of carbon (7.0 million tons of CO2), valued at $242 million, and remove another 92,000 tons of carbon a year worth $11.6 million.

Nowak et al. 2016, Austin's Urban Forest, 2014, USDA Forest Service Resource Bulletin NRS-100, 2014

Austin recorded 90 days of 100°F or hotter in 2011 and 80 in 2023, its two worst years on record, while the 1991-2020 average is 29 such days a year against a long-term average of 15.

National Weather Service Austin/San Antonio, Austin (Camp Mabry) Temperature Rankings, 2023

Austin endured a record 45 consecutive days of 100°F or hotter from July 8 to August 21, 2023, far above the previous streak of 27 days set in 2011.

National Weather Service Austin/San Antonio, Austin (Camp Mabry) Temperature Rankings, 2023

The compensatory (replacement) value of Austin's trees is estimated at $16.0 billion.

Nowak et al. 2016, Austin's Urban Forest, 2014, USDA Forest Service Resource Bulletin NRS-100, 2014

Austin's urban forest cuts residential energy costs by an estimated $18.9 million a year.

Nowak et al. 2016, Austin's Urban Forest, 2014, USDA Forest Service Resource Bulletin NRS-100, 2014

Austin's trees keep about 65 million cubic feet of stormwater runoff a year (roughly 486 million gallons) out of creeks and drains.

Nowak et al. 2016, Austin's Urban Forest, 2014, USDA Forest Service Resource Bulletin NRS-100, 2014

Dallas's built-up areas can be up to 15°F warmer than nearby rural areas, and the city's hottest neighborhoods averaged highs of 101°F and lows near 80°F for five months of the year.

Texas Trees Foundation, Dallas Urban Heat Island Management Study (Brian Stone, Georgia Tech), 2017, 2017

Heat-related deaths in Dallas County peaked at 52 in 2011, and Dallas is warming faster than every US city except Phoenix.

Texas Trees Foundation, Dallas Urban Heat Island Management Study (Brian Stone, Georgia Tech), 2017, 2017

Planting trees in Dallas's hottest high-density residential areas was modeled to cut heat-related deaths by more than 20% by lowering temperatures.

Texas Trees Foundation, Dallas Urban Heat Island Management Study (Brian Stone, Georgia Tech), 2017, 2017

Trees For Houston planted its 1,000,000th tree in February 2026, after 43 years of planting along freeways, parkways and in neighborhoods since 1983.

Trees For Houston, 2026

Seattle's tree canopy covered 28.1% of the city in 2021, down from 28.6% in 2016, a loss of 255 acres of canopy in five years.

City of Seattle, Tree Canopy Cover assessments (2016 and 2021), 2021

Seattle set a goal in 2007 of reaching 30% tree canopy cover by 2037.

City of Seattle, Tree Canopy Cover assessments (2016 and 2021), 2021

In Seattle, a 13% increase in neighborhood tree canopy is associated with a 0.5-degree reduction in temperature.

City of Seattle, Tree Canopy Cover assessments (2016 and 2021), 2021

Pará recorded the most Amazon deforestation in 2025/26 at 1,130 km2, down 45.3% from 2,064 km2 the year before.

INPE, BiomasBR / PRODES, 2026

Trees in Alabama's urban areas removed about 18,800 tonnes of air pollution in 2010, with human health benefits valued at $104 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in Alabama's urban areas store about 18.7 million tonnes of carbon and take up roughly 836,000 tonnes more each year; counting all urban and community land, storage rises to 53.9 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Alabama's urban and community trees save residents about $184 million a year in building energy costs ($162 million in electricity and $21.4 million in heating).

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in Arizona's urban areas removed about 6,000 tonnes of air pollution in 2010, with human health benefits valued at $20.9 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in Arizona's urban areas store about 5.5 million tonnes of carbon and take up roughly 253,000 tonnes more each year; counting all urban and community land, storage rises to 21.3 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Arizona's urban and community trees save residents about $278 million a year in building energy costs ($257 million in electricity and $20.1 million in heating).

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in California's urban areas removed about 36,400 tonnes of air pollution in 2010, with human health benefits valued at $404 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in California's urban areas store about 31.4 million tonnes of carbon and take up roughly 1.6 million tonnes more each year; counting all urban and community land, storage rises to 66.9 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

California's urban and community trees save residents a net $410 million a year in building energy costs: $411 million in reduced air conditioning, slightly offset by $1.2 million in added winter heating from shade.

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in Colorado's urban areas removed about 2,000 tonnes of air pollution in 2010, with human health benefits valued at $5.0 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in Colorado's urban areas store about 4.4 million tonnes of carbon and take up roughly 112,000 tonnes more each year; counting all urban and community land, storage rises to 10.0 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Colorado's urban and community trees save residents about $22.5 million a year in building energy costs ($7.1 million in electricity and $15.4 million in heating).

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in Connecticut's urban areas removed about 15,600 tonnes of air pollution in 2010, with human health benefits valued at $102 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in Connecticut's urban areas store about 23.3 million tonnes of carbon and take up roughly 724,000 tonnes more each year; counting all urban and community land, storage rises to 26.0 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Connecticut's urban and community trees save residents about $141 million a year in building energy costs ($106 million in electricity and $35.5 million in heating).

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in Florida's urban areas removed about 61,500 tonnes of air pollution in 2010, with human health benefits valued at $466 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in Florida's urban areas store about 42.9 million tonnes of carbon and take up roughly 2.6 million tonnes more each year; counting all urban and community land, storage rises to 62.6 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Florida's urban and community trees save residents about $643 million a year in building energy costs ($578 million in electricity and $65.5 million in heating).

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in Georgia's urban areas removed about 50,000 tonnes of air pollution in 2010, with human health benefits valued at $226 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Georgia's urban and community tree cover declined by about 0.37% a year between roughly 2009 and 2014, among the five fastest losses in the country.

Nowak & Greenfield 2018, Declining urban and community tree cover in the United States, Urban Forestry & Urban Greening 32 (USDA Forest Service Treesearch), 2018

Georgia lost 6.6% of its forest canopy, about 2.5 million acres, between 1985 and 2023, with some metro areas losing as much as 14%.

Georgia Forestry Commission citing Georgia Tech 2025 study, Georgia's Changing Forest, 2025

Trees in Georgia's urban areas store about 38.5 million tonnes of carbon and take up roughly 1.8 million tonnes more each year; counting all urban and community land, storage rises to 60.0 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Georgia's urban and community trees save residents a net $176 million a year in building energy costs: $178 million in reduced air conditioning, slightly offset by $1.6 million in added winter heating from shade.

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in Iowa's urban areas removed about 2,100 tonnes of air pollution in 2010, with human health benefits valued at $18.5 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in Iowa's urban areas store about 3.8 million tonnes of carbon and take up roughly 117,000 tonnes more each year; counting all urban and community land, storage rises to 7.7 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Iowa's urban and community trees save residents about $98.2 million a year in building energy costs ($15.9 million in electricity and $82.3 million in heating).

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in Illinois' urban areas removed about 11,200 tonnes of air pollution in 2010, with human health benefits valued at $133 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in Illinois' urban areas store about 18.7 million tonnes of carbon and take up roughly 688,000 tonnes more each year; counting all urban and community land, storage rises to 24.4 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Illinois' urban and community trees save residents about $313 million a year in building energy costs ($74.0 million in electricity and $239 million in heating).

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in Indiana's urban areas removed about 8,400 tonnes of air pollution in 2010, with human health benefits valued at $63.1 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in Indiana's urban areas store about 9.7 million tonnes of carbon and take up roughly 317,000 tonnes more each year; counting all urban and community land, storage rises to 13.7 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Indiana's urban and community trees save residents about $157 million a year in building energy costs ($33.2 million in electricity and $124 million in heating).

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in Kansas' urban areas removed about 2,100 tonnes of air pollution in 2010, with human health benefits valued at $11.7 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in Kansas' urban areas store about 4.8 million tonnes of carbon and take up roughly 176,000 tonnes more each year; counting all urban and community land, storage rises to 7.3 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Kansas has about 33.1 million urban trees covering 14% of its urban land, with a compensatory (replacement) value of $18.1 billion and $47.4 million a year in air pollution removal.

Nowak et al. 2012, Assessing Urban Forest Effects and Values of the Great Plains: Kansas, Nebraska, North Dakota, South Dakota, USDA Forest Service RB-NRS-71, 2008

Kansas' urban and community trees save residents about $156 million a year in building energy costs ($36.4 million in electricity and $120 million in heating).

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in Kentucky's urban areas removed about 6,900 tonnes of air pollution in 2010, with human health benefits valued at $42.1 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in Kentucky's urban areas store about 6.5 million tonnes of carbon and take up roughly 241,000 tonnes more each year; counting all urban and community land, storage rises to 9.0 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Kentucky's urban and community trees save residents about $121 million a year in building energy costs ($38.5 million in electricity and $82.8 million in heating).

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017

Trees in Louisiana's urban areas removed about 15,700 tonnes of air pollution in 2010, with human health benefits valued at $85.5 million.

Nowak et al. 2014, Tree and forest effects on air quality and human health in the United States, Environmental Pollution, 2010

Trees in Louisiana's urban areas store about 10.6 million tonnes of carbon and take up roughly 544,000 tonnes more each year; counting all urban and community land, storage rises to 20.4 million tonnes.

Nowak et al. 2013, Carbon storage and sequestration by trees in urban and community areas of the United States, Environmental Pollution, 2013

Louisiana's urban and community trees save residents about $192 million a year in building energy costs ($173 million in electricity and $18.2 million in heating).

Nowak et al. 2017, Residential building energy conservation and avoided power plant emissions by urban and community trees in the United States, Urban Forestry & Urban Greening 21, 2017