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"description": "Methane is a powerful greenhouse gas that traps heat 28 times more effectively than carbon dioxide over a 100-year timescale. Concentrations of methane have increased by more than 150% since industrial activities and intensive agriculture began. After carbon dioxide, methane is responsible for about 23% of climate change in the twentieth century. Methane is produced under conditions where little to no oxygen is available. About 30% of methane emissions are produced by wetlands, including ponds, lakes and rivers. Another 20% is produced by agriculture, due to a combination of livestock, waste management and rice cultivation. Activities related to oil, gas, and coal extraction release an additional 30%. The remainder of methane emissions come from minor sources such as wildfire, biomass burning, permafrost, termites, dams, and the ocean. Scientists around the world are working to better understand the budget of methane with the ultimate goals of reducing greenhouse gas emissions and improving prediction of environmental change. For additional information, see the Global Methane Budget.
The NASA SVS visualization presented here shows the complex patterns of methane emissions produced over Canada and Alaska during the summer of 2018. The visualization was created using output from the Global Modeling and Assimilation Office, GMAO, GEOS modeling system, developed and maintained by scientists at NASA. Wetland emissions were estimated by the LPJ-wsl model, which simulates the temperature and moisture dependent methane emission processes using a variety of satellite data to determine what parts of the globe are covered by wetlands. Other methane emission sources come from inventories of human activity. The height of Earth’s atmosphere and topography have been vertically exaggerated and appear approximately 50-times higher than normal in order to show the complexity of the atmospheric flow.
Emissions reflect a mix of agricultural and industrial activities. Emissions are transported through the atmosphere as weather systems move and mix methane around the globe. In the atmosphere, methane is eventually removed by reactive gases that convert it to carbon dioxide. Understanding the three-dimensional distribution of methane is important for NASA scientists planning observations that sample the atmosphere. Aircraft, like those launched during NASA’s Arctic Boreal Vulnerability Experiment (ABOVE) sample the atmosphere along very specific flight lines, providing additional details about the processes controlling methane emissions at high latitudes. Atmospheric models help place these measurements in context so that scientists can refine estimates of sources and sinks, understand the processes controlling them and reduce uncertainty in future projections of carbon-climate feedbacks.",
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"description": "Complete transcript available.Methane is an important greenhouse gas that contributes substantially to global warming. On a molecule by molecule basis, methane is much more efficient at trapping heat than carbon dioxide, the main driver of warming. Though human activities, including agriculture, oil and natural gas production and use, and waste disposal, collectively contribute the majority of methane to the atmosphere, about a third of total methane emissions comes from wetlands. Wetland habitats are filled with things like waterlogged soils and permafrost, which makes them sizable carbon sinks. However, as the climate changes, these carbon-rich soils are vulnerable to flooding and to rising temperatures, which can release more carbon to the atmosphere in the form of methane. Understanding methane emissions from natural sources like wetlands is critically important to scientists and policymakers who are working to ensure that changes in natural systems don’t counteract progress in combatting climate change made by reducing emissions from human activities.This animation shows estimates of wetland methane emissions produced by the Lund–Potsdam–Jena Dynamic Global Vegetation Model (LPJ-DGVM) Wald Schnee und Landscaft version (LPJ-wsl). LPJ-wsl is a prognostic model, meaning that it can be used to simulate future changes in wetland emissions and independently verified with remote sensing data products. The model includes a complex, topography dependent model of near surface hydrology, and a permafrost and dynamic snow model, allowing it to produce realistic distributions of inundated areas. Highlighted areas show concentrated methane sources from tropical and high latitude ecosystems. The LPJ-wsl model is regularly used in conjunction with NASA’s GEOS model to simulate the impact of wetlands and other methane sources on atmospheric methane concentrations, compare against satellite and airborne data, and to improve understanding and prediction of wetland emissions. Music credit: “Emerging Wave” from Universal Production Music || Screen_Shot_2022-12-09_at_1.10.12_PM_print.jpg (1024x571) [117.6 KB] || Screen_Shot_2022-12-09_at_1.10.12_PM.jpg (875x488) [108.8 KB] || Screen_Shot_2022-12-09_at_1.10.12_PM_searchweb.png (320x180) [57.3 KB] || Screen_Shot_2022-12-09_at_1.10.12_PM_web.png (320x178) [56.0 KB] || Screen_Shot_2022-12-09_at_1.10.12_PM_thm.png (80x40) [6.1 KB] || Methane.mp_Wetalnds_Final.mp4 (1920x1080) [74.1 MB] || Methane.mp_Wetalnds_Final.webm (1920x1080) [14.8 MB] || Sound_otter_ai.en_US.srt [2.5 KB] || Sound_otter_ai.en_US.vtt [2.5 KB] || ",
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"alt_text": "Complete transcript available.Methane is an important greenhouse gas that contributes substantially to global warming. On a molecule by molecule basis, methane is much more efficient at trapping heat than carbon dioxide, the main driver of warming. Though human activities, including agriculture, oil and natural gas production and use, and waste disposal, collectively contribute the majority of methane to the atmosphere, about a third of total methane emissions comes from wetlands. Wetland habitats are filled with things like waterlogged soils and permafrost, which makes them sizable carbon sinks. However, as the climate changes, these carbon-rich soils are vulnerable to flooding and to rising temperatures, which can release more carbon to the atmosphere in the form of methane. Understanding methane emissions from natural sources like wetlands is critically important to scientists and policymakers who are working to ensure that changes in natural systems don’t counteract progress in combatting climate change made by reducing emissions from human activities.\r\rThis animation shows estimates of wetland methane emissions produced by the Lund–Potsdam–Jena Dynamic Global Vegetation Model (LPJ-DGVM) Wald Schnee und Landscaft version (LPJ-wsl). LPJ-wsl is a prognostic model, meaning that it can be used to simulate future changes in wetland emissions and independently verified with remote sensing data products. The model includes a complex, topography dependent model of near surface hydrology, and a permafrost and dynamic snow model, allowing it to produce realistic distributions of inundated areas. Highlighted areas show concentrated methane sources from tropical and high latitude ecosystems. The LPJ-wsl model is regularly used in conjunction with NASA’s GEOS model to simulate the impact of wetlands and other methane sources on atmospheric methane concentrations, compare against satellite and airborne data, and to improve understanding and prediction of wetland emissions. \rMusic credit: “Emerging Wave” from Universal Production Music",
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"description": "Universal Production Music: Home To You by William Baxter Noon [PRS], Pluck Up Courage by John Griggs [PRS], Philip Michael Guyler [PRS], Wafer Thin by Adam Leslie Gock [APRA], Dinesh David Wicks [APRA], Mitchell Stewart [APRA], The Magpie's Pie by Quentin Bachelet [SACEM], Romain Sanson [SACEM], Ticking Tension by Quentin Bachelet [SACEM], Romain Sanson [SACEM], Reward Drawer by Ehren Ebbage [BMI] Additional images courtesy of Alaska Satellite Facility - University of Alaska FairbanksThis video can be freely shared and downloaded. While the video in its entirety can be shared without permission, some individual imagery provided by ASF is obtained through permission and may not be excised or remixed in other products. For more information on NASA’s media guidelines, visit https://www.nasa.gov/multimedia/guidelines/index.htmlComplete transcript available. || ABoVE_Title.jpg (1920x1080) [623.7 KB] || ABoVE_Title_searchweb.png (180x320) [91.6 KB] || ABoVE_Title_thm.png (80x40) [7.6 KB] || ABoVE_FINAL.webm (1920x1080) [66.4 MB] || TWITTER_ABoVE_FINAL.mp4 (1920x1080) [341.3 MB] || ABoVE.en_US.srt [12.5 KB] || ABoVE.en_US.vtt [11.8 KB] || ABoVE_FINAL.mp4 (1920x1080) [1.4 GB] || ",
"release_date": "2022-11-02T10:00:00-04:00",
"update_date": "2024-03-14T18:22:47.127974-04:00",
"main_image": {
"id": 368994,
"url": "https://svs.gsfc.nasa.gov/vis/a010000/a014200/a014221/ABoVE_Title.jpg",
"filename": "ABoVE_Title.jpg",
"media_type": "Image",
"alt_text": "Universal Production Music: Home To You by William Baxter Noon [PRS], Pluck Up Courage by John Griggs [PRS], Philip Michael Guyler [PRS], Wafer Thin by Adam Leslie Gock [APRA], Dinesh David Wicks [APRA], Mitchell Stewart [APRA], The Magpie's Pie by Quentin Bachelet [SACEM], Romain Sanson [SACEM], Ticking Tension by Quentin Bachelet [SACEM], Romain Sanson [SACEM], Reward Drawer by Ehren Ebbage [BMI] Additional images courtesy of Alaska Satellite Facility - University of Alaska FairbanksThis video can be freely shared and downloaded. While the video in its entirety can be shared without permission, some individual imagery provided by ASF is obtained through permission and may not be excised or remixed in other products. For more information on NASA’s media guidelines, visit https://www.nasa.gov/multimedia/guidelines/index.htmlComplete transcript available.",
"width": 1920,
"height": 1080,
"pixels": 2073600
}
},
{
"id": 14222,
"url": "https://svs.gsfc.nasa.gov/14222/",
"page_type": "B-Roll",
"title": "ABoVE Summer 2022 B-Roll",
"description": "The Arctic Boreal Vulnerability Experiment, or ABoVE, is a NASA-led, 10-year field experiment designed to better understand the ecological and social consequences of environmental change in one of the most rapidly changing regions on Earth. Satellite, airborne, and ground observations across Alaska and Canada will help us better understand the local and regional effects of changing forests, permafrost, and ecosystems – and how these changes could ultimately affect people and places beyond the Arctic. These videos were filmed during the summer 2022 field campaign in Fairbanks, Alaska. || ",
"release_date": "2022-10-10T00:00:00-04:00",
"update_date": "2023-05-03T11:43:56.868041-04:00",
"main_image": {
"id": 368923,
"url": "https://svs.gsfc.nasa.gov/vis/a010000/a014200/a014222/Murphy_Dome_Burn.jpg",
"filename": "Murphy_Dome_Burn.jpg",
"media_type": "Image",
"alt_text": "Featuring Dr. Liz Hoy, Senior Scientist for NASA's ABoVE mission.\nNo Sound",
"width": 1080,
"height": 1920,
"pixels": 2073600
}
}
],
"newer_versions": [],
"older_versions": [],
"alternate_versions": [
{
"id": 4799,
"url": "https://svs.gsfc.nasa.gov/4799/",
"page_type": "Visualization",
"title": "Sources of Methane",
"description": "This 3D volumetric visualization shows the emission and transport of atmospheric methane around the globe between December 9, 2017 and December 1, 2018.Music: \"Motion Blur\" by Sam Dobson [PRS]Complete transcript available.This video is also available on our YouTube channel. || Global_methane_narrated.1416_print.jpg (1024x576) [171.2 KB] || composite (1920x1080) [0 Item(s)] || MethaneNarrationSM.webm (1920x1080) [15.5 MB] || MethaneNarrationSM.mp4 (1920x1080) [171.1 MB] || MethaneCaptionsenUS.en_US.srt [2.0 KB] || MethaneCaptionsenUS.en_US.vtt [2.0 KB] || MethaneNarration.mov (1920x1080) [1.6 GB] || ",
"release_date": "2020-07-09T14:00:00-04:00",
"update_date": "2025-02-28T08:01:19.961331-05:00",
"main_image": {
"id": 386248,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004700/a004799/GlobalMethane_BG.1416_print.jpg",
"filename": "GlobalMethane_BG.1416_print.jpg",
"media_type": "Image",
"alt_text": "This layer of the visualization includes the Earth with the global atmospheric methane emission and transport. The overlay with the date and colorbar is not included.",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 4798,
"url": "https://svs.gsfc.nasa.gov/4798/",
"page_type": "Visualization",
"title": "Earth Day 2020: Global Atmospheric Methane",
"description": "This 3D volumetric visualization shows a global view of the methane emission and transport between December 1, 2017 and November 30, 2018. This visualizaion of the rotating global view is designed to be played in a continuous loop.This video is also available on our YouTube channel. || Earth_Day_Methane_loop.2919_print.jpg (1024x576) [102.0 KB] || Earth_Day_Methane_loop.2919_searchweb.png (320x180) [54.3 KB] || Earth_Day_Methane_loop.2919_thm.png (80x40) [5.0 KB] || loop_composite (1920x1080) [0 Item(s)] || Earth_Day_Methane_loop_1080p30.webm (1920x1080) [11.5 MB] || Earth_Day_Methane_loop_1080p30.mp4 (1920x1080) [355.8 MB] || captions_silent.29410.en_US.srt [43 bytes] || Earth_Day_Methane_loop_1080p30.mp4.hwshow [196 bytes] || ",
"release_date": "2020-04-21T00:00:00-04:00",
"update_date": "2025-03-10T00:09:12.071462-04:00",
"main_image": {
"id": 385992,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004700/a004798/Earth_Day_Methane_loop.2919_print.jpg",
"filename": "Earth_Day_Methane_loop.2919_print.jpg",
"media_type": "Image",
"alt_text": "This 3D volumetric visualization shows a global view of the methane emission and transport between December 1, 2017 and November 30, 2018. This visualizaion of the rotating global view is designed to be played in a continuous loop.This video is also available on our YouTube channel.",
"width": 1024,
"height": 576,
"pixels": 589824
}
},
{
"id": 4789,
"url": "https://svs.gsfc.nasa.gov/4789/",
"page_type": "Visualization",
"title": "Global Atmospheric Methane",
"description": "This first 3D volumetric visualization focuses on several continents showing the emission and transport of atmospheric methane around the globe between January 1, 2017 and November 30, 2018. This video is also available on our YouTube channel. || Global_methane_comp.1320_print.jpg (1024x576) [163.2 KB] || Global_methane_comp_1080p30.webm (1920x1080) [22.1 MB] || composite (1920x1080) [0 Item(s)] || captions_silent.29083.en_US.srt [43 bytes] || Global_methane_comp_1080p30.mp4 (1920x1080) [1.4 GB] || Global_methane_comp_1080p30.mp4.hwshow || ",
"release_date": "2020-03-23T10:00:00-04:00",
"update_date": "2025-06-23T00:10:40.213675-04:00",
"main_image": {
"id": 387485,
"url": "https://svs.gsfc.nasa.gov/vis/a000000/a004700/a004789/Global_methane_loop_comp.0210_print.jpg",
"filename": "Global_methane_loop_comp.0210_print.jpg",
"media_type": "Image",
"alt_text": "This second 3D volumetric visualization shows a global view of the methane emission and transport between December 1, 2017 and November 30, 2018. This visualizaion of the rotating global view is designed to be played in a continuous loop.This video is also available on our YouTube channel.",
"width": 1024,
"height": 576,
"pixels": 589824
}
}
]
}