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Post by GeoFactor Host on Aug 16, 2018 2:36:05 GMT
Atmospheric / Oceanic Levels.
Interactive Graphs: Levels 800,000 years to present day.
Global Temperature Record, Atmospheric Levels (Methane, C02, Nitrous Oxide and Oxygen) and Sea Levels.
The Interactive Graphs could not be embedded on this board. Description and links to the graphs are provided below.
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Post by GeoFactor Host on Aug 16, 2018 2:39:16 GMT
Global Temperature Record: This graph features a history of global surface temperatures that combine measurements from as far back as 800,000 years up to the present. Select a greenhouse gas from the graph menu to compare temperature to historical carbon dioxide, methane and nitrous oxide levels. The graph is customizable and can be resized, printed, or pasted into your website. This is a free service, but we do ask for a donation if you find this useful. This is a project of the 2 Degrees Institute, a non-profit organization. www.temperaturerecord.org |
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Post by GeoFactor Host on Aug 16, 2018 3:32:19 GMT
Methane: Atmospheric CH4 Levels Graph. This graph features atmospheric temperature and methane levels, a powerful greehouse gas, that combine measurements from Antarctica ice core data as far back as 800,000 years up to the most recent measurements averaged from a global network of air sampling sites. We encourage you to embed this graph directly into your website. The graph is fully customizable to fit your websites' look and feel. This is a free service, but we do ask for a donation if you find this useful. This is a project of the 2 Degrees Institute, a non-profit organization. www.methanelevels.org |
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Post by GeoFactor Host on Aug 16, 2018 3:33:05 GMT
Carbon Dioxide: Atmospheric CO2 Levels Graph. This graph features atmospheric CO2 levels that combine measurements from as far back as 800,000 years up to the present day with an atmospheric temperature overlay option. The graph is customizable and can be resized, printed, or pasted into your website. This is a free service, but we do ask for a donation if you find this useful. This is a project of the 2 Degrees Institute, a non-profit organization. www.co2levels.org |
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Post by GeoFactor Host on Aug 16, 2018 3:33:42 GMT
Nitrous Oxide: Atmospheric N2O Levels Graph. This graph features atmospheric nitrous oxide levels and temperature that combine measurements from as far back as 800,000 years up to the present day. The graph is customizable and can be resized, printed, or pasted into your website. This is a free service, but we do ask for a donation if you find this useful. This is a project of the 2 Degrees Institute, a non-profit organization. www.n2olevels.org |
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Post by GeoFactor Host on Aug 16, 2018 3:34:15 GMT
Oxygen: Atmospheric O2 Levels Graph. This graph displays earth's atmospheric oxygen levels from 1991 up to the present. The graph is customizable and can be resized, printed, or pasted into your website. This is a free service, but we do ask for a donation if you find this useful. This is a project of the 2 Degrees Institute, a non-profit organization. www.oxygenlevels.org |
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Post by GeoFactor Host on Aug 16, 2018 3:35:13 GMT
Global Mean Sea Level: Global Sea Levels Graph. This graph features global sea level measurements from as far back as 800,000 years up to the present time with an atmospheric temperature overlay option. The graph is customizable and can be resized, printed, or pasted into your website. This is a free service, but we do ask for a donation if you find this useful. This is a project of the 2 Degrees Institute, a non-profit organization. www.sealevels.org |
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Post by GeoFactor Host on Aug 16, 2018 3:45:58 GMT
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Post by GeoFactor Host on Aug 16, 2018 3:57:53 GMT
Ocean Acidification Levels: Ocean acidification is sometimes called “climate change’s equally evil twin,” and for good reason: it's a significant and harmful consequence of excess carbon dioxide in the atmosphere that we don't see or feel because its effects are happening underwater. At least one-quarter of the carbon dioxide (CO2) released by burning coal, oil and gas doesn't stay in the air, but instead dissolves into the ocean. Since the beginning of the industrial era, the ocean has absorbed some 525 billion tons of CO2 from the atmosphere, presently around 22 million tons per day. At first, scientists thought that this might be a good thing because it leaves less carbon dioxide in the air to warm the planet. But in the past decade, they’ve realized that this slowed warming has come at the cost of changing the ocean’s chemistry. When carbon dioxide dissolves in seawater, the water becomes more acidic and the ocean’s pH (a measure of how acidic or basic the ocean is) drops. Even though the ocean is immense, enough carbon dioxide can have a major impact. In the past 200 years alone, ocean water has become 30 percent more acidic—faster than any known change in ocean chemistry in the last 50 million years.  ocean.si.edu/ocean-life/invertebrates/ocean-acidification |
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Post by GeoFactor Host on Aug 16, 2018 4:32:31 GMT
Oceanic Oxygen Levels: In broadest view yet of world's low oxygen, scientists reveal dangers and solutions.
January 4, 2018, University of California - San DiegoIn the past 50 years, the amount of water in the open ocean with zero oxygen has gone up more than fourfold. In coastal water bodies, including estuaries and seas, low-oxygen sites have increased more than 10-fold since 1950. Scientists expect oxygen to continue dropping even outside these zones as Earth warms.  Low-oxygen zones are spreading around the globe. Red dots mark places on the coast where oxygen has plummeted to 2 milligrams per liter or less, and blue areas mark zones with the same low-oxygen levels in the open ocean. Read more at: phys.org/news/2018-01-broadest-view-world-oxygen-scientists.html#jCp |
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Post by GeoFactor Host on Aug 16, 2018 4:47:20 GMT
Stratospheric Ozone Depletion: Increasing UV Levels. The Sydney Morning Herald
Going to extremes: UV radiation is on the way up.
By Nigel Gladstone - 10 March 2018The combination of a thinning ozone layer and farming practices in India may add up to more days of extreme ultraviolet radiation across Australia. A Sun-Herald analysis of daily UV index readings since 1997 in Sydney, Melbourne and Brisbane found the number of days when ultraviolet radiation reached or passed extreme levels had risen slightly. The amount of UV that hits Australia is influenced by fluctuations in cloud cover, ozone levels and the solar cycle. In Sydney, four of the 10 highest UV index days since 1996 have been recorded since December 2016. While the ozone layer is recovering over the poles, it is thinning in mid-latitudes from Russia to the Southern Ocean below Australia, a study published last month in the journal Atmospheric Chemistry and Physics found. www.smh.com.au/environment/weather/going-to-extremes-uv-radiation-is-on-the-way-up-20180308-p4z3cp.html |
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