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Environmentalism for the 21st Century

Environmentalism for the 21st Century Learning Group </> Embed Share Join Now 73

Environmentalism for the 21st Century

Curated by Samantha Rowling
Environmentalism is a broad philosophy, ideology and social movement regarding concerns for environmental conservation and improvement of the health of the environment. Environmentalism advocates the preservation, restoration and/or improvement of the natural environment, and may be referred to as a movement to control pollution. Already at this early stage in the 21st century, unique challenges and issues are associated to protecting the natural environment. This learning group is dedicated these issues and the impact of human made pollution on planet Earth.
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Discussions Discussion Nukes post-Fukushima
Axel H-Sweden, April 26, 2012

What do you think about thorium as a new fuel for the powerplants? Since it’s alot more common and alot more secure to use thorium as fuel. This is because when you create uranium-235 out of the thorium and then cleaves the core it creates alot less heavy substances that has a long half-life that is the reason for the massive amount of time that the nuclear waste has to be stored. Since you can use every little atom you don’t need as much thorium as uranium when thorium is used as a fuel. (Facts from a swedish science-paper).

Axel H-Sweden
Comments (4)
  • Axel H-Sweden Axel H-Sweden April 27, 2012
    It's a metal, number 90 in the periodic table.
  • Devon Polley Devon Polley April 27, 2012
    Is it unstable?
  • preston polley preston polley April 30, 2012
    Even if you can create uranium-235 out of thorium it still is a very expensive process.
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Discussions Discussion Nukes post-Fukushima
L M, April 25, 2012

I believe nuclear energy can be a viable and safe source of energy. Most nuclear reactors these days are generation I reactors that are dangerous and produce much to much waste not to mention the energy lost in our terrible electrical grid. Generation II reactors will be safer and better and can be placed closer to cities so all the power can be used.

Comments (5)
  • Viktor K-Sweden Viktor K-Sweden April 26, 2012
    I see where your going with this, and i too belive that nuclear energy is a safe source of energy. But even if we would upgread our generators, it still does not solve the real problem with nuclear energy, wich is how to store the used Uranium. Therefore I think the only solution is how we handle the final disposal of the used fule. When we figured out this problem, nuclear power will be the most efficient and safe energy source.
  • Andreas E-Sweden Andreas E-Sweden April 27, 2012
    Part of the idea with new generations of nuclear power plants is that they should be both more efficient and safer for future generations. For example the “fourth-generation” reactors are believed to yield hundreds of times more energy out of the same amount of fuel as today's reactors. The waste should then only be needed to be kept sealed for a few hundred years, compared to the milleniums today. In addition, those are predicted to be able to use the waste that are being burried today.

    Given that the nuclear power research continues, I am convinced waste won't be a problem within one hundred years.

    Still, nuclear power will always be dangerous if not handled with care, but compared to energy production with coal and oil I think nuclear power is superior, as the climate change, in my opinion, is more urgent to prevent.

    Some more reading can be found on Wikipedia; http://en.wikipedia.org/wiki/Generation_IV_reactor
  • Nick H. Nick H. May 1, 2012
    This is very interesting. As this technology progresses, do you think countries like Japan should use these reactors, or would be just as much at risk as they would be if they were using an older generation?
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Discussions Discussion Let’s go environmentally responsible
Beth Bernstein, April 13, 2012

Eat less meat to prevent climate disaster, study warns…

Fertilisers used in growing feed crops for cattle produce the most potent of the greenhouse gases causing climate change

A study published in Environmental Research Letters warns that drastic changes in food production and at the dinner table are needed by 2050 in order to prevent catastrophic global warming.

It’s arguably the most difficult challenge in dealing with climate change: how to reduce emissions from food production while still producing enough to feed a global population projected to reach 9 billion by the middle of this century.


More on the impact of food prodction on climate change below…

Beth Bernstein
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Discussions Discussion Life on the Reef: Amazing World of Coral Fish…
Jessie Rhodes, April 13, 2012

Great Barrier Reef ‘not so great’:

“So the question is: why has coral cover continued to decline when the Great Barrier Reaf is being managed with a management regime often recognised as ‘the best managed coral reef system in the world’, based on a strong science-for-management ethic?”

In a nut shell, the stressors which are known to be most responsible for the loss of coral cover and general ‘reef health’ were terrestrial pollution including the link to outbreaks of crown of thorns starfish, fishing impacts and climate change.

And effective action on climate change has yet to begin either nationally or globally.

Jessie Rhodes

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Discussions Discussion Deforestation SOS
Bert Breton, April 13, 2012

The fight to save the Amazon just enlisted a global sports superstar, Ricardo Kaká. The current Real Madrid striker and Brazilian national starter has joined Greenpeace to support zero deforestation of the Amazon.

While soccer still has a way to go in the USA, there isn’t a kid in the world (outside the USA) who doesn’t know who Kaká is. Let’s hope Kaká’s star power makes our future generations understand that Amazon deforestation must not be tolerated.


Bert Breton
Comments (1)
  • Sophie V-USA Sophie V-USA Oct. 5, 2012
    This is awesome! I'm so happy to see a person with wide influence promote environmentalism! It would be neat to have an organization or coalition of people with influence form an environmentalism group or does one already exist?

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Discussions Discussion Health & Environment
Tim Foufas, April 3, 2012

For Bolivian Farmers, Quinoa Boom Is Both Boon and Bane

Tim Foufas
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Discussions Discussion Life on the Reef: Amazing World of Coral Fish…
Samantha Rowling, April 3, 2012

BP Oil Spill Devastated Seafloor Coral:

Since sea bed coral lies some 4,000 feet (1,200 meters) below the surface, it is not usually harmed by spills from oil tankers, according to lead study author Helen White, an assistant professor of chemistry at Haverford College in Pennsylvania.

We would not expect deep-water corals to be impacted by a typical oil spill, but the sheer magnitude of the Deepwater Horizon oil spill and its release at depth make it very different from a tanker running aground and spilling its contents,” she said.

Because of the unprecedented nature of the spill, we have learned that its impacts are more far reaching than those arising from smaller spills that occur on the surface.”

Samantha Rowling

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Discussions Discussion Health & Environment
Stuart Meyers, March 29, 2012

Can you kindly advise the course policy for review (Professor or T/A) of drafts before final submission of assignments? I’ve had classes in which it is mandatory, optional, or prohibited. Thank you.

Stuart Meyers
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Discussions Discussion Health & Environment
Rafi Chandio, March 26, 2012

‘Unprecedented’ heat in US, 7,000 records set or tied:

Since March 12, more than 7,000 high temperature records have been equalled or exceeded, Cullen said, citing figures from the US National Climatic Data Center.

The date of first leafing - the day when buds burst open - has moved forward from March 20, where it was during the 30-year period from 1951 to 1980, to March 17, where it has been for the period from 1981 to 2010.

This early wake-up call for plants and animals can have disastrous health consequences, especially for children, said Dr. Aaron Bernstein of the Center for Health and the Global Environment at Harvard Medical School. Pollen counts are breaking records around the US, Bernstein said, noting that allergies cost the US economy between $6bn and $12bn annually.

Rafi Chandio
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Discussions Discussion Deforestation SOS
Wendy Bachman, March 26, 2012

Why are trees are turning blue in Seattle and Vancouver?

It’s a socially-driven art project started by Australian artist Konstantin Dimopoulos who uses a water-based pigment to turn the trees “ultramarine blue.”

The goal: To inspire awareness about global deforestation. Take a look at what the project looked like in Vancouver.

This is still local news. But look for this social art project to gain momentum at a national level. It’s beautiful and deserves our attention!!!

Wendy Bachman
Comments (1)
  • Cayla C Seattle USA Cayla C Seattle USA May 1, 2012
    does it have to be blue? why cant we just add other colors to show the world that our trees brings life and excitement to our life.

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