Skip to main content
Access provided by

Caleb Scharf

Caleb Scharf

1 commentaries

Caleb Scharf is Director of Astrobiology at Columbia University. His next book, The Copernicus Complex, will be published in September 2014.

Sort by: Show:
  1. Our Cosmic Context
    CosmosCrossSection_NASA_ESA_Hubble NASA/ESA/Hubble

    Our Cosmic Context

    May 5, 2014 Caleb Scharf explains how investigations into life on other planets help us to understand Earth's challenges.

  1. BP trump china MARK RALSTON/AFP via Getty Images
    0

    What Will Trump Do About China?

    US President-elect Donald Trump campaigned on a promise to take a confrontational approach to China, with tariffs as his weapon of choice. But unless his administration adopts a measured approach, his plans may end up harming American businesses and consumers, undermining US democracy, or even leading to military confrontation.

  2. 0

    The Big Picture

    PS editors
  3. karman1_getty images_cooperation Getty Images
    0

    Human Progress in the Trump Era

    Tawakkol Karman, et al. propose ways to foster a culture of cooperation at a time of rising conflict and democratic erosion.
  4. frankel166_JemalCountessGettyImages_national_debt Jemal Countess/Getty Images
    1

    Elon Musk’s $2 Trillion Fiscal Fantasy

    Jeffrey Frankel

    It is often said that a businessman like Donald Trump or Elon Musk will know how to put America’s fiscal house in order. But between Trump’s planned tax cuts and Musk’s absurd estimate of how much federal spending can be reduced, the smart money says they have no idea what they are doing.

     dives into the incoming US administration’s absurd claim that fresh tax cuts will not increase the deficit.
  5. buchholz21_getty images_us china Getty Images
    0

    The Deal Trump Should Offer China

    Todd G. Buchholz

    To address what he sees as an unfair Sino-American economic relationship, Donald Trump should focus not on trade but on China's currency manipulation and massive holdings of US debt. After all, why saddle US consumers with higher costs when you can demand reparations directly from a foreign competitor?

     proposes that the incoming US administration push for a debt write-off and market access instead of tariffs.
  6. muzikarova7_NurPhotoGettyImages_cyberconference_poland NurPhoto/Getty Images
    0

    Central and Eastern Europe’s Bid for AI Dominance

    Soňa Muzikárová outlines steps policymakers can take to harness the technology’s potential to boost growth and prosperity.
  7. aosaid1_getty images_tech justice
    0

    Can Technology End Corruption?

    Azalina Othman Said thinks that powerful new digital tools can help, but only if governments commit to upholding the rule of law.
  8. scherger1ARMEND NIMANIAFP via Getty Images_farming ARMEND NIMANI/AFP via Getty Images
    Free to read
    1

    Carbon Farming Won't Save the Planet

    Sophie Scherger warns that soil-storage offsets may serve as a smokescreen for polluting industries.
  9. bildt129_MaximShipenkovGettyImages_valdai_putin_fail Maxim Shipenkov/Getty Images
    0

    Putin’s March of Folly

    Carl Bildt argues that Russia’s president has only his own poor decisions to blame for his country’s loss of status.

Edit Newsletter Preferences

Set up Notification

To receive email updates regarding this {entity_type}, please enter your email below.

If you are not already registered, this will create a PS account for you. You should receive an activation email shortly.