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.

2019 Global Fleet Fuel Use*

Custom Metric

VEHICLE CATEGORY # of Vehicles Fuel Gallons
Cars, Light Trucks and Vans 3,897 3,682,035
Super Duty 828 778,750
Medium Duty 1,744 2,013,484
Heavy Duty 194 317,596
Chippers and Grinders 778 349,691
Off Road, Turf Equipment, Misc Powered Equipment 3,294 259,964
Other 621 248,510
Bulk Fuel NA 4,992,545
Total 11,356 12,642,575

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 began implementing Fleet 2020, our new fleet management system. The system, which will be launched in four phases over the next two years, provides comprehensive tracking of fleet data, including:

  • Vehicle history
  • Registration status
  • Maintenance schedules
  • Vehicle repair status
  • Fuel use
  • Capital expenditure requests

Available electronically, Fleet 2020 fully integrates into our existing management system and across devices. In addition, Fleet 2020 will enable automated fleet analyses, such as vehicle total cost of ownership, and help inform decisions about vehicle acquisition, operations and retirement.

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

Global Fleet Fuel Use per Labor Hour

Custom Metric

Global Fleet Fuel Use* 

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

*While analyzing our fuel data we discovered bulk fuel was not being captured in our reporting system causing us to under report our fuel use. We have corrected this under reporting back to our 2017 baseline.


In 2019, we began replacing our fleet vehciles with hybrid vehicles and expect to save 110,000 gallons of gas per year by the time the change is fully implemented. We continue to investigate alternative fuels and lithium ion technology for the right fit in our operations.  Equipping 100 percent of Davey’s fleet with GPS will enable real time monitoring location, speed, acceleration and idling. Through proactively monitoring driver behavior and promoting good driver habits, we can substantially reduce fleet fuel use.

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