---
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caption: "Forest mortality due to fire and insect activity is already evident in the Northwest.\r\n    Continued changes in climate in coming decades are expected to increase these effects. Trees killed by a fire (left side of\r\n    watershed) and trees killed by mountain pine beetle and spruce beetle infestations (orange and gray patches, right side of\r\n    watershed) in subalpine forest in the Pasayten Wilderness, Okanogan Wenatchee National Forest, Washington, illustrates how\r\n    cumulative disturbances can affect forests. (Photo credit: Jeremy Littell, USGS)."
chapter:
  description: ~
  display_name: 'Chapter 21: Northwest'
  doi: 10.7930/J04Q7RWX
  identifier: northwest
  number: 21
  report_identifier: nca3
  sort_key: 210
  title: Northwest
  url: http://nca2014.globalchange.gov/report/regions/northwest
chapter_identifier: northwest
cited_by: []
contributors:
  - display_name: 'Scientist : Jeremy Littell (U.S. Geological Survey) '
    href: http://52.38.26.42:8080/contributor/2956.yaml
    id: 2956
    organization:
      country_code: US
      display_name: U.S. Geological Survey
      identifier: us-geological-survey
      name: U.S. Geological Survey
      organization_type_identifier: federal
      type: organization
      url: http://www.usgs.gov/
    organization_uri: /organization/us-geological-survey
    person:
      display_name: Jeremy Littell
      first_name: Jeremy
      id: 918
      last_name: Littell
      middle_name: ~
      orcid: ~
      type: person
      url: http://www.jisao.washington.edu/researchers/bios/littell
    person_id: 918
    person_uri: /person/918
    role_type_identifier: scientist
    uri: /contributor/2956
create_dt: 2013-11-18T11:50:00
description: "Forest mortality due to fire and insect activity is already evident in the Northwest.\r\n    Continued changes in climate in coming decades are expected to increase these effects. Trees killed by a fire (left side of\r\n    watershed) and trees killed by mountain pine beetle and spruce beetle infestations (orange and gray patches, right side of\r\n    watershed) in subalpine forest in the Pasayten Wilderness, Okanogan Wenatchee National Forest, Washington, illustrates how\r\n    cumulative disturbances can affect forests. (Photo credit: Jeremy Littell, USGS)."
display_name: '21.6: Forest mortality'
files:
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    type: file
    uri: /file/a6447b59-40a0-45c5-8081-6f3a81b4b383
    url: http://data.globalchange.gov/assets/c2/30/5ca1df992cf9f922dd6372df471d/NW_forest_mortality_v4.png
href: http://52.38.26.42:8080/report/nca3/chapter/northwest/figure/forest-mortality.yaml
identifier: forest-mortality
images:
  - attributes: ~
    create_dt: 2013-11-18T11:50:00
    description: ~
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    title: Forest Mortality
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kindred_figures: []
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ordinal: 6
parents: []
references: []
report:
  display_name: 'Climate Change Impacts in the United States: The Third National Climate Assessment'
report_identifier: nca3
source_citation: ~
submission_dt: ~
time_end: ~
time_start: ~
title: Forest mortality
type: figure
uri: /report/nca3/chapter/northwest/figure/forest-mortality
url: http://nca2014.globalchange.gov/report/regions/northwest/graphics/forest-mortality
usage_limits: Copyright protected. Obtain permission from the original figure source.