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Will the Arctic shift from a carbon sink to a carbon source?

  • Written by The Conversation Contributor
imageThe warming global climate is causing fundamental changes to the carbon cycle in northern parts of the world. peupleloup/flickr, CC BY-SA

Studies show that the warming of the climate system is altering the movement and storage of carbon in the far north of the Earth. And these changes carry global implications. Among the many questions that...

Read more: Will the Arctic shift from a carbon sink to a carbon source?

'Powerpoint was not his thing': a poem on teaching and technology

  • Written by The Conversation Contributor
imageThe Parana River in moonlight. Gisela Giardino, CC BY-SA

I am a scholar and teacher of Spanish and Portuguese. I am also a poet.

The several books of poetry I have published in English, Spanish and Guarani (an indigenous South American language and one of the official languages of Paraguay), plus numerous readings of my work, both in Paraguay and at...

Read more: 'Powerpoint was not his thing': a poem on teaching and technology

On the 120th anniversary of the X-ray, a look at how it changed our view of the world

  • Written by The Conversation Contributor
imageWilhelm Conrad Roentgen looking into an X-ray screen placed in front of a man's body and seeing the ribs and the bones of the arm.Wellcome Library, London, CC BY

Sunday, November 8 marks the 120th anniversary of one of the greatest moments in the history of science: an obscure German physics professor’s discovery of the X-ray. His name was...

Read more: On the 120th anniversary of the X-ray, a look at how it changed our view of the world

Ben Carson: token candidate

  • Written by The Conversation Contributor
imageCarson smiles at the CNBC GOP debate. Rick Wilking/REUTERS

Ben Carson has now overtaken Donald Trump in the national polls as the GOP front-runner.

As a black man, I’m not at all sure how I should feel about this.

On the one hand, he represents a party that has dedicated itself to opposing President Obama at every turn, mostly because the pres...

Read more: Ben Carson: token candidate

How we got to now: why the US and Europe went different ways on GMOs

  • Written by The Conversation Contributor
imagePart of the ongoing debate: some papaya growers in Hawaii have planted a strain that has been genetically modified to resist a virus.remembertobreathe/flickr, CC BY-NC-ND

There is a myth that circulates on both sides of the Atlantic: Americans accepted genetically modified organisms (GMOs) in their food supply without question, while the more...

Read more: How we got to now: why the US and Europe went different ways on GMOs

Here are some more reasons why liberal arts matter

  • Written by The Conversation Contributor
imageWhat constitutes liberal arts?University of Central Arkansas, CC BY-NC-ND

Lately, in the heated call for greater STEM (science, technology, engineering, math) education at every level, the traditional liberal arts have been needlessly, indeed recklessly, portrayed as the villain. And STEM fields have been (falsely) portrayed as the very opposite of...

Read more: Here are some more reasons why liberal arts matter

Labs make new, dangerous synthetic cannabinoid drugs faster than we can ban them

  • Written by The Conversation Contributor
imagePackets of synthetic cannabinoids illegally sold in New York City.Sebastien Malo/Reuters

XLR-11, PB-22, AB-FUBINACA, MAB-CHMINACA, 5F-AMB. These are the cryptic and sometimes unpronounceable names of the most dangerous drugs you’ve never heard of. They are responsible for kidney injury, psychosis, seizures, coma and death.

For instance,...

Read more: Labs make new, dangerous synthetic cannabinoid drugs faster than we can ban them

How campaign finance disenfranchises America's silent majority of socialists

  • Written by The Conversation Contributor
imageSocialists: please raise your hand.Reuters

It took the excitement generated by the political campaign of a self-described socialist, Bernie Sanders, to put into stark relief the extent to which the United States political system fails to reflect and respond to the aspirations of most Americans.

That’s because decades of income stagnation have...

Read more: How campaign finance disenfranchises America's silent majority of socialists

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  5. Ohio strikes blow against gerrymandering
  6. If a solar plant uses natural gas, is it still green?
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  8. Wedding bells or single again: psychology predicts where your relationship is headed
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  14. What Grantland's demise says about ESPN's past and future ambitions
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  22. Hearing ghost voices relies on pseudoscience and fallibility of human perception
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  30. What should we make of Paul Ryan’s fondness for Ayn Rand?
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  32. Solar power can cut consumers' bills and still be good for utilities
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  41. Could Hurricane Patricia be a harbinger of storms in a warming climate?
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