mark hertsgaard

Independent Journalist & Author


New York AG Wants To Know: Did ExxonMobil Lie To Investors?

Pity the poor fossil fuel industry! New York state Attorney General Eric Schneiderman warns ExxonMobil and its industry brethren that “dramatic changes” are ahead in a Nation interview where he discusses the need to pursue both “transactional” and “transformational” politics:… Read more



How GOP Climate Deniers Weakened Paris Agreement

The Paris Agreement doubtless would have been much stronger if the US delegation didn’t have to avoid items that would have qualified the agreement as a “treaty” that a Republican-dominated Senate surely would have killed:… Read more

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Scientists Warn Paris Text Needs Massive Improvement

An international all-star panel of climate scientists expressed alarm at the emerging Paris Agreement, saying that massive improvements were needed in the remaining 24 hours to give humanity a chance of avoiding a dire future:… Read more

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Rich and Poor Nations Spar in Paris

Even as the historic 1.5C temperature target remained in play at the Paris climate negotiations, poor nations complained that the rich were demanding an odious quid-pro-quo: stop talking about the rich providing compensation for the damage and suffering the most vulnerable people and economies are increasingly experiencing:… Read more

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Paris Stunner: 1.5 C Target On Table

I believe I was the first to report this from the Paris climate summit: in a historic victory for climate activists and the world’s poorest and most vulnerable nations, negotiators are moving towards including a temperature rise target of 1.5 degrees Celsius above pre-industrial levels–a goal that was ridiculed six years ago at the Copenhagen summit:… Read more

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Grassroots Activism Opens Door to Paris Success

In this curtain raiser before the Paris climate summit, I report on the activist successes–notably, defeating the Keystone XL pipeline–that reveal the growing power of civil society to reverse the march towards climate catastrophe:… Read more

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Latest Book


Hertsgaard’s latest book, HOT, describes how his five year old daughter and the rest of Generation Hot can cope with the massive climate impacts that are now inevitable. Packed with eyewitness reporting on existing solutions for "avoiding the unmanageable and managing the unavoidable," HOT shows how we all must think--and act--differently now in the fight against climate change. Read more

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About Mark

Called "one of America’s finest reporters" by Barbara Ehrenreich, Mark Hertsgaard is the author of six books that have been translated into sixteen languages, including Earth Odyssey and On Bended Knee. He has covered climate change, politics and the media for leading media outlets around the world, including Vanity Fair, The Nation, Time, The New Yorker, NPR, L’espresso, Die Zeit and Le Monde Diplomatique.