---
attributes: ~
caption: '(left) A stylized representation of the natural greenhouse effect. Most of the sun’s radiation reaches the Earth’s surface. Naturally occurring heat-trapping gases, including water vapor, carbon dioxide, methane, and nitrous oxide, do not absorb the short- wave energy from the sun but do absorb the long-wave energy re-radiated from the Earth, keeping the planet much warmer than it would be otherwise. (right) In this stylized representation of the human-intensified greenhouse effect, human activities, predominantly the burning of fossil fuels (coal, oil, and gas), are increasing levels of carbon dioxide and other heat-trapping gases, increasing the natural greenhouse effect and thus Earth’s temperature. (Figure source: modified from National Park Service10).'
chapter:
  description: ~
  display_name: 'Chapter 34: Appendix 4: Frequently Asked Questions'
  doi: 10.7930/J0G15XS3
  identifier: appendix-faqs
  number: 34
  report_identifier: nca3
  sort_key: 340
  title: 'Appendix 4: Frequently Asked Questions'
  url: http://nca2014.globalchange.gov/report/appendices/faqs
chapter_identifier: appendix-faqs
cited_by: []
contributors:
  - display_name: 'Scientist : William Elder (National Park Service) '
    href: http://52.38.26.42:8080/contributor/3262.yaml
    id: 3262
    organization:
      country_code: US
      display_name: National Park Service
      identifier: national-park-service
      name: National Park Service
      organization_type_identifier: federal
      type: organization
      url: http://www.nps.gov/
    organization_uri: /organization/national-park-service
    person:
      display_name: William Elder
      first_name: William
      id: 1949
      last_name: Elder
      middle_name: ~
      orcid: ~
      type: person
      url: ~
    person_id: 1949
    person_uri: /person/1949
    role_type_identifier: scientist
    uri: /contributor/3262
create_dt: 2013-10-22T10:32:00
description: '(left) A stylized representation of the natural greenhouse effect. Most of the sun’s radiation reaches the Earth’s surface. Naturally occurring heat-trapping gases, including water vapor, carbon dioxide, methane, and nitrous oxide, do not absorb the short- wave energy from the sun but do absorb the long-wave energy re-radiated from the Earth, keeping the planet much warmer than it would be otherwise. (right) In this stylized representation of the human-intensified greenhouse effect, human activities, predominantly the burning of fossil fuels (coal, oil, and gas), are increasing levels of carbon dioxide and other heat-trapping gases, increasing the natural greenhouse effect and thus Earth’s temperature. (Figure source: modified from National Park Service10).'
display_name: '34.11: Human Influence on the Greenhouse Effect'
files:
  - display_name: CAQ_greenhouse_effect_V5.png
    file: 9e/0e/812412ea8aac67e8ae346f4fcb02/CAQ_greenhouse_effect_V5.png
    href: http://data.globalchange.gov/assets/9e/0e/812412ea8aac67e8ae346f4fcb02/CAQ_greenhouse_effect_V5.png
    identifier: c23e9476-7f89-4fa9-b520-62f6156bd2b5
    landing_page: ~
    location: ~
    mime_type: image/png
    sha1: 0d9fd70c8ce6f3fbf570bc06df6459b6b7680a82
    size: 1563021
    thumbnail: 9e/0e/812412ea8aac67e8ae346f4fcb02/.thumb-c23e9476-7f89-4fa9-b520-62f6156bd2b5.png
    thumbnail_href: http://data.globalchange.gov/assets/9e/0e/812412ea8aac67e8ae346f4fcb02/.thumb-c23e9476-7f89-4fa9-b520-62f6156bd2b5.png
    type: file
    uri: /file/c23e9476-7f89-4fa9-b520-62f6156bd2b5
    url: http://data.globalchange.gov/assets/9e/0e/812412ea8aac67e8ae346f4fcb02/CAQ_greenhouse_effect_V5.png
href: http://52.38.26.42:8080/report/nca3/chapter/appendix-faqs/figure/caq-human-influence-on-the-greenhouse-effect.yaml
identifier: caq-human-influence-on-the-greenhouse-effect
images:
  - attributes: ~
    create_dt: 2013-10-22T10:32:00
    description: ~
    identifier: e13cdf2e-0699-4c52-a642-56c8fc3317c4
    lat_max: ~
    lat_min: ~
    lon_max: ~
    lon_min: ~
    position: ~
    submission_dt: ~
    time_end: ~
    time_start: ~
    title: 'Human Influence on the Greenhouse Effect - Human Enhanced Greenhouse Effect'
    url: ~
    usage_limits: ~
  - attributes: ~
    create_dt: 2013-10-22T10:32:00
    description: ~
    identifier: 03937439-cc5a-45c7-a0fd-78b863c49979
    lat_max: ~
    lat_min: ~
    lon_max: ~
    lon_min: ~
    position: ~
    submission_dt: ~
    time_end: ~
    time_start: ~
    title: 'Human Influence on the Greenhouse Effect - Natural Greenhouse Effect'
    url: ~
    usage_limits: ~
kindred_figures:
  - /report/nca3/chapter/appendix-climate-science-supplement/figure/human-influence-on-the-greenhouse-effect
lat_max: ~
lat_min: ~
lon_max: ~
lon_min: ~
ordinal: 11
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: Human Influence on the Greenhouse Effect
type: figure
uri: /report/nca3/chapter/appendix-faqs/figure/caq-human-influence-on-the-greenhouse-effect
url: http://nca2014.globalchange.gov/report/appendices/faqs/graphics/human-influence-greenhouse-effect
usage_limits: Free to use with credit to the original figure source.