Sustainable Environment

Energy & Emissions

For nearly 140 years, we have built our business on valuing the natural capital of trees, plant life and animal habitats created for our homes and communities. As we begin to see evidence of a changing climate in our work and research, we have the capability and responsibility to act on climate change and create positive impacts through our environmental services. In addition, we will continue to work internally to reduce our carbon emissions and fossil fuel use.

Management Approach

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Each day, our employees travel across North America, providing our clients proven solutions for a growing world. In fact, Davey operates one of the 50 largest corporate fleets in the U.S., with nearly 10,000 vehicles traveling more than 50 million miles each year.

2020 Global Fleet Fuel Use*

Custom Metric

VEHICLE CATEGORY # of Vehicles Fuel Gallons
Cars, Light Trucks and Vans 1,272 1,217,500
Super Duty 2,321 3,212,177
Medium Duty 2,806 3,835,410
Heavy Duty 38 92,484
Chippers and Grinders 778 349,691
Off Road, Turf Equipment, Misc Powered Equipment 1,251 475,052
Other 692 332,867
Bulk Fuel NA 3,526,806
Total 8,813 12,910,390

The energy use and affiliated emissions from our fleet of vehicles and field equipment represent approximately 95 percent of our total Scope 1 and 2 emissions. Therefore, managing our fleet and equipment—ensuring each item is properly used, as well as serviced regularly and maintained—offers the most actionable opportunity to decrease our emissions and energy use.

Fleet Energy (GJ in thousands)

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Fleet Emissions (MTCO2E in thousands)

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*2013-2016 data updated to reflect 2017 methodology, which uses the World Resources Institute (2015) GHG Protocol Tool for mobile combustion, Version 2.6.

In 2017, we established a bold goal to reduce our global fleet fuel consumption by 35 percent per labor hour by 2023 from a 2017 baseline. We are investigating several mechanisms to achieve this goal, including:

  • Renewable and alternative fuels
  • Telematics and driver behavior monitoring
  • Energy efficiency and route optimization
  • Partnering to innovate and acquire environmentally friendly equipment

In 2020 we started investigating the electrification of our fleet and continue to research alternative fuels, lithium-ion tools, and autonomous technology for the right fit in our operations.

Global Fleet Fuel Use per Labor Hour

Custom Metric

Global Fleet Fuel Use* 

  2017 2018 2019 2020
Total Global Fleet Fuel Use (U.S. Gallons) 10,349,703 10,863,598 12,642,575 12,910,390
Total Labor Hours (Hours) 12,212,869 13,594,671 16,955,968 16,486,481
Global Fleet Fuel Use per Labor Hour (U.S. Gallons per Hour) 0.847 0.799 0.746 0.783

We attribute our increased fuel use to our COVID-19 safety protocols of having one employee per service vehicle to maintain social distancing.


In 2020, Davey began converting its sales fleet of more than 240 vehicles to the 2020 Toyota Rav4 LE Hybrid SUV model. A top safety pick, the hybrid Rav4 is all-wheel drive with a combined average gas mileage of 39 miles per gallon, a huge savings compared with the average 24 mpg of the previously used Ford Escape.
That equates to more than 100,000 gallons of fuel expected to be saved per year. In 2021 we plan to start introducing electric vehicles to fleet where they make sense for the operation.

In conjunction with the Davey Institute and Microsoft, Davey’s equipment department is exploring how to reduce our fleet footprint through the Internet of Things (IoT). Through smart landscapes, field crews will be able to receive real time alerts from sensors embedded in client landscapes. Nearby crews can then respond to an alert, saving both time and fuel, and ensuring our clients’ landscapes are treated in an expedient manner.

Trees Save Lives

Trees save more than 850 lives a year by removing air pollution.

USDA Forest Service