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Topics - Reallybigbunny

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Consequences / The Holocene Extinction
« on: April 19, 2018, 09:27:38 PM »

https://en.wikipedia.org/wiki/Holocene_extinction

There have been a number of topics and posts on this forum from all over the world regarding the current mass extinction event. Please read (at least) the summary of the following New Zealand Government Report published on 19.4.18.

Summary of the key findings from the report:

•Our soil is affected by erosion and intensive agriculture:

◦192 million tonnes of soil are lost every year from erosion – 44 percent of this is from pasture.


◦Soil quality testing shows 2 out of 7 indicators give reason for concern, with 48 percent of tested sites outside the target range for phosphorus content and macroporosity.



•Nearly 83 percent of our native birds, bats, reptiles, and frogs are classified as threatened or at risk of extinction (between 2010 and 2016).


•20 species of birds improved their conservation status (between 2012 and 2016).


•As well as loss of native vegetation across the country, coastal and lowland habitats continued to reduce.


•There have been significant shifts in land use in the last two decades:

◦10 percent increase in the total size of our towns and cities (between 1996 and 2012).


◦42 percent increase in the area of land used for dairy, and a 20 percent decrease in area used for sheep and beef (between 2002 and 2016).


◦shift in the past 15 years to higher numbers of animals farmed per hectare, especially in dairy.


◦net loss of 71,000 hectares of native land cover (between 1996 and 2012).


◦7 percent decrease in total area of land in agricultural production (between 2002 and 2012).


For the entire paper please follow the link below:

http://www.mfe.govt.nz/news-events/land-report-highlights-issues-soil-degradation

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Glaciers / Grey Glacier, Southern Chile
« on: November 29, 2017, 09:04:11 AM »
Nice pics of Grey Glacier calving in Southern Chile.


https://www.theguardian.com/environment/2017/nov/29/large-iceberg-breaks-off-from-grey-glacier-in-southern-chile


Part of the Southern Patagonian Ice Field of Chile and Argentina, Grey Glacier covered 104 square miles when it was measured in 1996. By 2007, when this photograph was taken by astronauts from the International Space Station, the glacier had shrunk considerably, as seen in a comparative false-color image. Scientists think increased regional temperatures and changes in the amount of precipitation have led to more ice calving off as free-floating chunks, and less ice being replenished each year.

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Developers Corner / Related research in the Arctic
« on: November 18, 2017, 07:21:34 PM »
I came across this interesting research happening in the arctic using remote sailboats. Really interesting blog. Take a look!


NOAA’s Oceanic and Atmospheric Research (OAR) or "NOAA Research" provides the research foundation for understanding the complex systems that support our planet. Working in partnership with other parts of NOAA, OAR enables better forecasts, earlier warnings for natural disasters, and a greater understanding of the Earth. Our role is to provide unbiased science to better manage the environment, nationally, and globally. NOAA’s Pacific Marine Environmental Laboratory (PMEL) is a federal laboratory that makes critical observations and conducts groundbreaking research to advance our knowledge of the global ocean and its interactions with the earth, atmosphere, ecosystems, and climate. And the Innovative Technology for Arctic Exploration program leads the development and deployment of innovative technologies in the harsh and extreme environment of the Arctic.

https://www.pmel.noaa.gov/itae/

https://www.pmel.noaa.gov/itae/follow-saildrone-2017



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