--- title: "13 Planets Quotes By James Hansen" description: "13 Planets quotes by James Hansen. Plus more from James Hansen and more Planets sayings from other authors." image: "https://sms4smile.com/quotes/i/52e/james-hansen-7143_civilization_coal-is-the-single-greatest-threat-to-ci_1378327.jpg" --- > [Coal is the single greatest threat to civilization and all life on our planet.](https://sms4smile.com/quotes/james-hansen/coal-is-the-single-greatest-threat-to-civilization-and-all-life-on/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/52e/james-hansen-7143_civilization_coal-is-the-single-greatest-threat-to-ci_1378327.jpg) > [If we fail to act, we will end up with a different planet.](https://sms4smile.com/quotes/james-hansen/if-we-fail-to-act-we-will-end-up-with-a-different-planet/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/90f/james-hansen-7143_different_if-we-fail-to-act-we-will-end-up-with-a_2830845.jpg) > [What we are doing to the future of our children, and the other species on the planet, is a clear moral issue.](https://sms4smile.com/quotes/james-hansen/what-we-are-doing-to-the-future-of-our-children-and-the-other-species/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/1a6/james-hansen-7143_children_what-we-are-doing-to-the-future-of-our-c_1030463.jpg) > [Only in the last few years did the science crystallize, revealing the urgency - our planet really is in peril. If we…](https://sms4smile.com/quotes/james-hansen/only-in-the-last-few-years-did-the-science-crystallize-revealing-the/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/100/james-hansen-7143_children_only-in-the-last-few-years-did-the-scien_2105067.jpg) > [Burning all the fossil fuels will destroy the planet we know, Creation, the planet of stable climate in which civilization developed.](https://sms4smile.com/quotes/james-hansen/burning-all-the-fossil-fuels-will-destroy-the-planet-we-know-creation/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/e26/james-hansen-7143_burning_burning-all-the-fossil-fuels-will-destro_2400431.jpg) > [Planet Earth, creation, the world in which civilization developed, the world with climate patterns that we know and stable shorelines, is in…](https://sms4smile.com/quotes/james-hansen/planet-earth-creation-the-world-in-which-civilization-developed-the/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/25c/james-hansen-7143_civilization_planet-earth-creation-the-world-in-which_2642660.jpg) > [If we drive our fellow species to extinction, we will leave a far more desolate planet for our descendants than the world…](https://sms4smile.com/quotes/james-hansen/if-we-drive-our-fellow-species-to-extinction-we-will-leave-a-far-more/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/1f3/james-hansen-7143_climate_if-we-drive-our-fellow-species-to-extinc_2144169.jpg) > [What has become clear from the science is that we cannot burn all of the fossil fuels without creating a very different…](https://sms4smile.com/quotes/james-hansen/what-has-become-clear-from-the-science-is-that-we-cannot-burn-all-of/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/894/james-hansen-7143_burn_what-has-become-clear-from-the-science-i_2685329.jpg) > [We have at most ten years - not ten years to decide upon action, but ten years to alter fundamentally the trajectory…](https://sms4smile.com/quotes/james-hansen/we-have-at-most-ten-years-not-ten-years-to-decide-upon-action-but-ten-2/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/2c9/james-hansen-7143_action_we-have-at-most-ten-years-not-ten-years_3149482.jpg) > [The most difficult task, phase-out over the next 20-25 years of coal use that does not capture COâ‚‚, is Herculean, yet feasible…](https://sms4smile.com/quotes/james-hansen/the-most-difficult-task-phase-out-over-the-next-20-25-years-of-coal/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/ad5/james-hansen-7143_capture_the-most-difficult-task-phase-out-over-t_680667.jpg) > [The climate dice are now loaded. Some seasons still will be cooler than the long-term average, but the perceptive person should notice…](https://sms4smile.com/quotes/james-hansen/the-climate-dice-are-now-loaded-some-seasons-still-will-be-cooler/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/631/james-hansen-7143_average_the-climate-dice-are-now-loaded-some-sea_2126701.jpg) > [It has become very difficult for anyone to argue that observed global warming is natural variability. We have good reason for being…](https://sms4smile.com/quotes/james-hansen/it-has-become-very-difficult-for-anyone-to-argue-that-observed-global/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/22c/james-hansen-7143_able_it-has-become-very-difficult-for-anyone_1778457.jpg) > [If humanity wishes to preserve a planet similar to that on which civilisation developed and to which life on Earth is adapted,…](https://sms4smile.com/quotes/james-hansen/if-humanity-wishes-to-preserve-a-planet-similar-to-that-on-which/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) [Image](https://sms4smile.com/quotes/i/4b3/james-hansen-7143_adapted_if-humanity-wishes-to-preserve-a-planet_1183760.jpg) ## Other authors on Planets ## More by James Hansen > [Talking nice about sun and wind and green jobs is just greenwash.](https://sms4smile.com/quotes/james-hansen/talking-nice-about-sun-and-wind-and-green-jobs-is-just-greenwash/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [What is frustrating people, me included, is that democratic action affects elections but what we get then from political leaders is greenwash.](https://sms4smile.com/quotes/james-hansen/what-is-frustrating-people-me-included-is-that-democratic-action/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [The five-year mean global temperature has been flat for the last decade](https://sms4smile.com/quotes/james-hansen/the-five-year-mean-global-temperature-has-been-flat-for-the-last/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [What makes tar sands particularly odious is that the energy you get out in the end, per unit carbon dioxide, is poor. It's equivalent…](https://sms4smile.com/quotes/james-hansen/what-makes-tar-sands-particularly-odious-is-that-the-energy-you-get/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [We are on the precipice of climate system tipping points beyond which there is no redemption.](https://sms4smile.com/quotes/james-hansen/we-are-on-the-precipice-of-climate-system-tipping-points-beyond-which/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [Jail threats did not dissuade Martin Luther King - and intergenerational justice is a moral issue of comparable magnitude to civil rights.](https://sms4smile.com/quotes/james-hansen/jail-threats-did-not-dissuade-martin-luther-king-and/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [The United States did not sign Kyoto, yet its emissions are not that different from the countries that did sign it.](https://sms4smile.com/quotes/james-hansen/the-united-states-did-not-sign-kyoto-yet-its-emissions-are-not-that/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [The five-year mean global temperature has been flat for the last decade, which we interpret as a combination of natural variability and a slow…](https://sms4smile.com/quotes/james-hansen/the-five-year-mean-global-temperature-has-been-flat-for-the-last-2/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [Rising carbon price is essential to 'decarbonize' the economy - to remove the nation towards the era beyond fossil fuels.](https://sms4smile.com/quotes/james-hansen/rising-carbon-price-is-essential-to-decarbonize-the-economy-to-remove/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [Policy decisions on climate change are being deliberated every day by those without full knowledge of the science, and often with intentional misinformation spawned…](https://sms4smile.com/quotes/james-hansen/policy-decisions-on-climate-change-are-being-deliberated-every-day-by/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [ Imagine a giant asteroid on a direct collision course with Earth. That is the equivalent of what we face now \[with climate change\], yet… ](https://sms4smile.com/quotes/james-hansen/imagine-a-giant-asteroid-on-a-direct-collision-course-with-earth-that/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [The most difficult task, phase-out over the next 20-25 years of coal use that does not capture COâ‚‚, is Herculean, yet feasible when compared…](https://sms4smile.com/quotes/james-hansen/the-most-difficult-task-phase-out-over-the-next-20-25-years-of-coal/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [As species are exterminated by shifting climate zones, ecosystems can collapse, destroying more species.](https://sms4smile.com/quotes/james-hansen/as-species-are-exterminated-by-shifting-climate-zones-ecosystems-can/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [I think we have a very brief window of opportunity to deal with climate change... no longer than a decade, at the most.](https://sms4smile.com/quotes/james-hansen/i-think-we-have-a-very-brief-window-of-opportunity-to-deal-with/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) > [The climate system is being pushed hard enough that change will become obvious to the man in the street in the next decade.](https://sms4smile.com/quotes/james-hansen/the-climate-system-is-being-pushed-hard-enough-that-change-will/) [James Hansen](https://sms4smile.com/quotes/author/james-hansen/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "ItemList", "@id": "https://sms4smile.com/quotes/about/planets/james-hansen/#itemlist", "name": "13 Planets Quotes By James Hansen", "numberOfItems": 13, "itemListElement": [ { "@type": "ListItem", "position": 1, "item": { "@type": "Quotation", "text": "Coal is the single greatest threat to civilization and all life on our planet.", "creator": { "@type": "Person", "name": "James Hansen" }, "url": "https://sms4smile.com/quotes/james-hansen/coal-is-the-single-greatest-threat-to-civilization-and-all-life-on/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/52e/james-hansen-7143_civilization_coal-is-the-single-greatest-threat-to-ci_1378327.jpg", "contentUrl": "https://sms4smile.com/quotes/i/52e/james-hansen-7143_civilization_coal-is-the-single-greatest-threat-to-ci_1378327.jpg", "url": "https://sms4smile.com/quotes/i/52e/james-hansen-7143_civilization_coal-is-the-single-greatest-threat-to-ci_1378327.jpg", "width": 1080, "height": 1080, "caption": "“Coal is the single greatest threat to civilization and all life on our planet.” — James Hansen", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } }, { "@type": "ListItem", "position": 2, "item": { "@type": "Quotation", "text": "If we fail to act, we will end up with a different planet.", "creator": { "@type": "Person", "name": "James Hansen" }, "url": "https://sms4smile.com/quotes/james-hansen/if-we-fail-to-act-we-will-end-up-with-a-different-planet/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/90f/james-hansen-7143_different_if-we-fail-to-act-we-will-end-up-with-a_2830845.jpg", "contentUrl": "https://sms4smile.com/quotes/i/90f/james-hansen-7143_different_if-we-fail-to-act-we-will-end-up-with-a_2830845.jpg", "url": "https://sms4smile.com/quotes/i/90f/james-hansen-7143_different_if-we-fail-to-act-we-will-end-up-with-a_2830845.jpg", "width": 1080, "height": 1080, "caption": "“If we fail to act, we will end up with a different planet.” — James Hansen", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } }, { "@type": "ListItem", "position": 3, "item": { "@type": "Quotation", "text": "What we are doing to the future of our children, and the other species on the planet, is a clear moral issue.", "creator": { "@type": "Person", "name": "James Hansen" }, "url": "https://sms4smile.com/quotes/james-hansen/what-we-are-doing-to-the-future-of-our-children-and-the-other-species/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/1a6/james-hansen-7143_children_what-we-are-doing-to-the-future-of-our-c_1030463.jpg", "contentUrl": "https://sms4smile.com/quotes/i/1a6/james-hansen-7143_children_what-we-are-doing-to-the-future-of-our-c_1030463.jpg", "url": "https://sms4smile.com/quotes/i/1a6/james-hansen-7143_children_what-we-are-doing-to-the-future-of-our-c_1030463.jpg", "width": 1080, "height": 1080, "caption": "“What we are doing to the future of our children, and the other species on the planet, is a clear moral issue.” — James Hansen", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } }, { "@type": "ListItem", "position": 4, "item": { "@type": "Quotation", "text": "Only in the last few years did the science crystallize, revealing the urgency - our planet really is in peril. 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"position": 5, "item": { "@type": "Quotation", "text": "Burning all the fossil fuels will destroy the planet we know, Creation, the planet of stable climate in which civilization developed.", "creator": { "@type": "Person", "name": "James Hansen" }, "url": "https://sms4smile.com/quotes/james-hansen/burning-all-the-fossil-fuels-will-destroy-the-planet-we-know-creation/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/e26/james-hansen-7143_burning_burning-all-the-fossil-fuels-will-destro_2400431.jpg", "contentUrl": "https://sms4smile.com/quotes/i/e26/james-hansen-7143_burning_burning-all-the-fossil-fuels-will-destro_2400431.jpg", "url": "https://sms4smile.com/quotes/i/e26/james-hansen-7143_burning_burning-all-the-fossil-fuels-will-destro_2400431.jpg", "width": 1080, "height": 1080, "caption": "“Burning all the fossil fuels will destroy the planet we know, Creation, the planet of stable climate in…” — James Hansen", "creditText": "SMS4Smile Quotes", "creator": { 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We are near a tipping point, a point of no return, beyond which the built in momentum and feedbacks will carry us to levels of climate change with staggering consequences for humanity and all of the residents of this planet.", "creator": { "@type": "Person", "name": "James Hansen" }, "url": "https://sms4smile.com/quotes/james-hansen/we-have-at-most-ten-years-not-ten-years-to-decide-upon-action-but-ten-2/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/2c9/james-hansen-7143_action_we-have-at-most-ten-years-not-ten-years_3149482.jpg", "contentUrl": "https://sms4smile.com/quotes/i/2c9/james-hansen-7143_action_we-have-at-most-ten-years-not-ten-years_3149482.jpg", "url": "https://sms4smile.com/quotes/i/2c9/james-hansen-7143_action_we-have-at-most-ten-years-not-ten-years_3149482.jpg", "width": 1080, "height": 1080, "caption": "“We have at most ten years - not ten years to decide upon action, but ten years to alter fundamentally the…” — James Hansen", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } }, { "@type": "ListItem", "position": 10, "item": { "@type": "Quotation", "text": "The most difficult task, phase-out over the next 20-25 years of coal use that does not capture COâ‚‚, is Herculean, yet feasible when compared with the efforts that went into World War II. The stakes, for all life on the planet, surpass those of any previous crisis. The greatest danger is continued ignorance and denial, which could make tragic consequences unavoidable.", "creator": { "@type": "Person", "name": "James Hansen" }, "url": "https://sms4smile.com/quotes/james-hansen/the-most-difficult-task-phase-out-over-the-next-20-25-years-of-coal/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/ad5/james-hansen-7143_capture_the-most-difficult-task-phase-out-over-t_680667.jpg", "contentUrl": "https://sms4smile.com/quotes/i/ad5/james-hansen-7143_capture_the-most-difficult-task-phase-out-over-t_680667.jpg", "url": "https://sms4smile.com/quotes/i/ad5/james-hansen-7143_capture_the-most-difficult-task-phase-out-over-t_680667.jpg", "width": 1080, "height": 1080, "caption": "“The most difficult task, phase-out over the next 20-25 years of coal use that does not capture COâ‚‚, is…” — James Hansen", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } }, { "@type": "ListItem", "position": 11, "item": { "@type": "Quotation", "text": "The climate dice are now loaded. Some seasons still will be cooler than the long-term average, but the perceptive person should notice that the frequency of unusually warm extremes is increasing. It is the extremes that have the most impact on people and other life on the planet.", "creator": { "@type": "Person", "name": "James Hansen" }, "url": "https://sms4smile.com/quotes/james-hansen/the-climate-dice-are-now-loaded-some-seasons-still-will-be-cooler/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/631/james-hansen-7143_average_the-climate-dice-are-now-loaded-some-sea_2126701.jpg", "contentUrl": "https://sms4smile.com/quotes/i/631/james-hansen-7143_average_the-climate-dice-are-now-loaded-some-sea_2126701.jpg", "url": "https://sms4smile.com/quotes/i/631/james-hansen-7143_average_the-climate-dice-are-now-loaded-some-sea_2126701.jpg", "width": 1080, "height": 1080, "caption": "“The climate dice are now loaded. Some seasons still will be cooler than the long-term average, but the…” — James Hansen", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } }, { "@type": "ListItem", "position": 12, "item": { "@type": "Quotation", "text": "It has become very difficult for anyone to argue that observed global warming is natural variability. We have good reason for being able to say that the world will be warmer by about a quarter of a degree in the next decade. It's the same reason we had 10 years ago when we said that the 1990s would be warmer than the 1980s: The planet is out of equilibrium.", "creator": { "@type": "Person", "name": "James Hansen" }, "url": "https://sms4smile.com/quotes/james-hansen/it-has-become-very-difficult-for-anyone-to-argue-that-observed-global/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/22c/james-hansen-7143_able_it-has-become-very-difficult-for-anyone_1778457.jpg", "contentUrl": "https://sms4smile.com/quotes/i/22c/james-hansen-7143_able_it-has-become-very-difficult-for-anyone_1778457.jpg", "url": "https://sms4smile.com/quotes/i/22c/james-hansen-7143_able_it-has-become-very-difficult-for-anyone_1778457.jpg", "width": 1080, "height": 1080, "caption": "“It has become very difficult for anyone to argue that observed global warming is natural variability. 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If the present overshoot of this target CO₂ is not brief, there is a possibility of seeding irreversible catastrophic effects.", "creator": { "@type": "Person", "name": "James Hansen" }, "url": "https://sms4smile.com/quotes/james-hansen/if-humanity-wishes-to-preserve-a-planet-similar-to-that-on-which/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/4b3/james-hansen-7143_adapted_if-humanity-wishes-to-preserve-a-planet_1183760.jpg", "contentUrl": "https://sms4smile.com/quotes/i/4b3/james-hansen-7143_adapted_if-humanity-wishes-to-preserve-a-planet_1183760.jpg", "url": "https://sms4smile.com/quotes/i/4b3/james-hansen-7143_adapted_if-humanity-wishes-to-preserve-a-planet_1183760.jpg", "width": 1080, "height": 1080, "caption": "“If humanity wishes to preserve a planet similar to that on which civilisation developed and to which life on…” — James Hansen", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } } ] }, { "@type": "CollectionPage", "@id": "https://sms4smile.com/quotes/about/planets/james-hansen/#webpage", "url": "https://sms4smile.com/quotes/about/planets/james-hansen/", "name": "Planets Quotes by James Hansen", "isPartOf": { "@id": "https://sms4smile.com/quotes/#website" }, "mainEntity": { "@id": "https://sms4smile.com/quotes/about/planets/james-hansen/#itemlist" }, "primaryImageOfPage": { "@id": "https://sms4smile.com/quotes/i/52e/james-hansen-7143_civilization_coal-is-the-single-greatest-threat-to-ci_1378327.jpg" }, "description": "13 Planets quotes by James Hansen. 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