Tropics have expanded by 0.5 degrees in latitude per decade since 1970s:
Sahara Desert enlarged 10% since 1910.
US100th Meridian has shifted 140 miles to East since 1980.
Tornado Alley moved 500 miles East since 1990.
Plant Hardiness Zones in US move North 13 miles per decade.
Permafrost Line in Canada moved 80 miles North in last 50 years.
Wheat Belt pushed poleward 160 miles per decade, and is rapidly moving out of Australia.
Thousands of Northern Hemisphere lakes are losing ice cover.
Climate of Cities is shifting up to 500 miles within one generation.
Arctic has lost 80% of coldest air in 6 decades.
Uggggggg….. Grrrrrrrr… WTF… What’s Next???
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The most common estimates of the humans who have ever lived on Earth are around 108 billion people. Using that assumption, a little under 7% of all people who have ever lived are alive right now https://t.co/o2njtFnC9Kpic.twitter.com/Xq1AXjwbvd
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Scientists call it California’s “other big one,” and they say it could cause three times as much damage as a major earthquake ripping along the San Andreas Fault. https://t.co/21jaf6VatH
Trump’s gone full dictator on President’s Day. Praising his tv network Fox News, calling the DoJ & FBI traitors, calling McCabe deranged, attacking Rosenstein, attacking Sessions and lying saying that there was an illegal coup attempted by the DoJ. Trump’s lost his fricking mind.
This is really important: is everyone processing that, across two tweets today—considered official presidential statements—the President of the United States falsely accused the Federal Bureau of Investigation and Department of Justice of secretly plotting a "treasonous" "coup"?
Arctic Blue-Ocean-Event Consequences for Greenland: 1 of 2 // Feb 15, 2019
Between 60,000 and 22,000 years ago there were numerous abrupt temperature fluctuations recorded by oxygen and nitrogen isotopes (paleo-thermometer proxies) in Greenland ice cores [1]. Temperatures over parts of Greenland rose by up to 16.5 C within a decade or two, in the largest of these so-called Dansgaard-Oescher (D-O) Oscillations.
I chat on the latest science, about how a lack of Arctic sea-ice was the primary factor. This is crucial info to help us figure out what will happen to Greenland when we have no surrounding sea ice left.
[1] Ref: Arctic sea ice loss in the past linked to abrupt climate events, February 11, 2019, British Antarctic Survey: Lead author, Dr. Louise Sime, a climate scientist at BAS says:
“For years scientists have been puzzled about the correlation between Arctic sea ice loss and the extreme climate events found in the ice core record. There were at least four theories being mooted and for two years we’ve been investigating this problem. I’m delighted that we have proven the critical importance of sea ice using our numerical model simulations.
“The summer time sea ice in the Arctic has experienced a 40% decline in the last few decades, but we know that about two thirds of that reduction is caused by human-induced climate change. What we now need to determine is, what can be learnt from these past sea ice losses to enable us to understand what might happen next to our climate3.”
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Impact of Abrupt Sea-Ice Loss on Greenland: 2 of 2 // Feb 15, 2019
Second video continues where previous left off.
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‘Greenland, Antarctica, South America, the Himalayas – it’s all going, the ice is leaving the Earth.
This is a whirl-wind roundup of new science with Ottawa climate expert Paul Beckwith. We talk pollution (is it saving us?), vanishing glaciers, Tasmanian dry lightening fires, James Hansen’s latest, tech to draw down carbon dioxide, and why this scientist made 500 videos to educate and warn the public via YouTube‘.
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The study found that the world’s seven major industrial democracies spent at least $100 billion a year to prop up oil, gas and coal consumption at home and abroad in 2015 and 2016 despite their pledge to end fossil fuel subsidies by 2025.#ClimateChangehttps://t.co/Pq3aGf2Azs
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Bitter Ann Coulter scolds Trump’s wall plan: ‘The only national emergency is our president is an idiot’ https://t.co/szVpzK8SRW
In the past fifty years, average February temperatures in Utqiagvik, America’s northernmost city, have risen *11 degrees*. Arctic Alaska is experiencing the birth of a new climate. https://t.co/D2EQAVsLME
David Wallace-Wells writes, "Being alarmed is not a sign of being hysterical; when it comes to climate change, being alarmed is what the facts demand. Perhaps the only logical response." https://t.co/EpvzWhfWVa
Alpine Glacier Melt-Out at the Third Pole // Feb 12, 2019
Since 1970 about 15% of the glacial ice has melted out at the “Third Pole”; the extensive region with high elevations in Asia that encompasses the Himalayan Mountains and the Tibetan Plateau. Warming is being amplified by a little-known feedback called Elevation Dependent Warming (EDW). A conservative estimate is that we will lose one-third, one-half or two-thirds of the ice with average global temperature change of 1.5 C, 2.0 C, and 4.0 C, respectively, threatening the water supply (and food supply) for up to 2 billion people.
———- ———- Amplification of Warming at High Elevations // Feb 13, 2019
In most (but not all) high-elevation regions, like the Third Pole (Tibetan Plateau; Himalayan Mountains), Antarctica, Greenland, Rockies, Alps, etc. the higher up you go, the greater the rate of warming. This is not commonly known, but the rate of temperature rise is about 2x, 3x or even greater, at higher altitudes than at lower altitudes, in a phenomena called Elevation Dependent Warming (EDW); clearly analogous to greater warming at higher latitudes. This is bad, especially for Greenland, Antarctica, as well as for the 2 billion people using Third Pole runoff.
———- ———- Feedback Mechanisms Amplifying Warming in Alpine Regions // Feb 13, 2019
In the previous video I described how most alpine regions are warming two to three times faster at high elevations versus low elevations (and global average warming rates). Now I chat about feedbacks and processes that cause this, and how they vary with seasons and different regions. Albedo feedback, similar to that causing polar amplification, is one effect; others include upward creep of snow and tree lines, water vapour increases, cloud changes, aerosol loading changes, and both short-wave and long-wave radiation effects at altitude.
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"The repercussions this will have for the planet's ecosystems are catastrophic to say the least." https://t.co/11vrjHbuuS
"This drought is not going to end until we stop global warming,"
"It's not just precipitation, it's temperatures. We need to understand how what's happening on the land and to plants affects flows. It would be crazy to bet on increased precipitation."https://t.co/AgO1faLPix
I asked some Green New Deal critics for alternative policy suggestions.
The only one that emerged was a sort of "Green Marshall Plan" that relies on yet-to-be-developed technology for low- or zero-carbon agriculture and manufacturing.https://t.co/ogBCBK7BLK
Just about nobody in political life talks about climate change with the required level of alarm and fear. This will be a generational battle for survival.
Non-Intuitive Consequences of Rapid Melt in Greenland and Antarctica: 1 of 2 // Feb 8, 2019
Glaciers on Greenland and Antarctica are rapidly melting due to Abrupt Climate Change, and melt rates are doubling with a period of roughly 7 years. This is exponential, after:
7 years melt rates are double (2x), after 14 years rates are 4x, after 21 years rates are 8x, etc.
In this video and the next I, discuss consequences that are rarely considered, like
reduced gravitational pull near the glaciers, isostatic rebound, and
reduction of vertical ocean mixing from surface freshwater lensing effects, leading to: increased basal ice sheet melting.
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Surprising Effects from Rapid Glacier Melt in Greenland and Antarctica: 2 of 2 // Feb 9, 2019
Ref: Global environmental consequences of twenty-first-century ice-sheet melt: Golledge, Keller, Gomez, Naughten, Bernales, Trusel, Edwards. Nature Volume 566, pages 65–72, 2019. Published: 06 February 2019.
‘Government policies currently commit us to surface warming of three to four degrees Celsius above pre-industrial levels by 2100, which will lead to enhanced ice-sheet melt. … Here we show, using simulations of the Greenland and Antarctic ice sheets constrained by satellite-based measurements of recent changes in ice mass, that increasing meltwater from Greenland will lead to substantial slowing of the Atlantic overturning circulation, and that meltwater from Antarctica will trap warm water below the sea surface, creating a positive feedback that increases Antarctic ice loss.’
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Mayhem Down Under: Atacama Desert Waterfall; Argentinian Heatwaves; Tasmanian Dry Lightning Fires // Feb 7, 2019
Climate Mayhem is hitting many regions in the Southern Hemisphere. A misconception is that the bottom of the planet is more immune from rapid climate disruption due to its remoteness from the Arctic.
Even many 1 Percenters and 0.1 Percenters are confused, and preparing Bug-Out places in New Zealand; they are sadly mistaken. I discuss:
torrential rains and waterfalls in the Atacama Desert in Chile (driest Desert in world);
heatwaves at the Southern tip of Argentina, and
unprecedented wildfires from “dry lightning” in old-growth pristine forests in Tasmania.
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Global Average Temperature Rising About 3x Faster Over Land Than Water // Feb 7, 2019
Last year (2018) was the 4th warmest year, following behind El Niño influenced years 2015 (3rd), 2016 (1st), and 2017 (2nd). An El Niño may develop this year (65% chance) but is not likely to be super-strong, like that in 2015 and 1998.
Since 1970, average global temperatures are rising an average 0.17 degrees C per decade, but that slope is increasing. Rise over the land (0.27 C per decade) is almost 3X faster than that over the ocean (0.10 C per decade). Land at high latitudes gets a double whammy, due to polar temperature amplification.
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1:2 @AOC is new acronym to sweeping through the world. It is the initials of one of the most remarkable young leaders on today's political scene.
Whether was done w/story of divine right, military might, subterfuge of democracy, leaders at top of the pyramid of control- king, emperor, prime minister, president, banker-have always basically set about putting rest of humanity to work for them. https://t.co/WkhHnEdOn9pic.twitter.com/0ZgtVyZvXU
Both Arctic (red) and Antarctic (blue) sea ice extents averaged the 2nd lowest on record in 2018 (satellite era). However, the two poles are affected by very different atmospheric and oceanic processes. pic.twitter.com/saRNmaD7Ew
Huge Cavity Melted Out in Antarctic Glacier: Part 1 of 2 // Feb 4, 2019
A huge cavity–4 km wide by 10 km long by 300 meters high–has melted at the glacier base in only 3-5 years. Total melt of west Antarctic glaciers:
Would raise global sea levels about 5 meters;
Greenland glacier melt would add 7 meters;
East Antarctic plus mountain glacier melt would add 60 meters (total about 72 meters = 238 feet).
I discuss how melt rates of Antarctica glaciers are rapidly increasing due to warm salty ocean water incursions under the ice; in fact under Thwaites Glacier in west Antarctica an enormous hole— 4 km w x 10 km L x 300 meter H–has appeared in only a few years.
Ref: Huge cavity in Antarctic glacier signals rapid decay: ‘A gigantic cavity – two-thirds the area of Manhattan and almost 1,000 feet (300 meters) tall – growing at the bottom of Thwaites Glacier in West Antarctica is one of several disturbing discoveries reported in a new NASA-led study of the disintegrating glacier. The findings highlight the need for detailed observations of Antarctic glaciers’ undersides in calculating how fast global sea levels will rise in response to climate change.
Researchers expected to find some gaps between ice and bedrock at Thwaites’ bottom where ocean water could flow in and melt the glacier from below. The size and explosive growth rate of the newfound hole, however, surprised them. It’s big enough to have contained 14 billion tons of ice, and most of that ice melted over the last three years’.
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Huge Cavity Melted Out in Antarctic Glacier: Part 2 of 2 // Feb 4, 2019
Second video, continues from first. Please consider supporting or continuing to support my independent climate system science research and videos, by donating to my website efforts.
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One-third of the ice in the Himalayas and Hindu Kush mountains will be lost due to rising temps by 2100, threatening the water supplies for nearly 2 billion people, according to a landmark new report. https://t.co/fAtRd4iUzepic.twitter.com/wRmDhPbLfC
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Tasmania: “These fires signal a terrifying new reality, as disturbing and ultimately almost certainly as tragic as the coral reef bleaching of the Great Barrier Reef”. Richard Flanagan https://t.co/bPmPcXZ4vShttps://t.co/8R0S5BxsjA
700 MILLION people in India, Pakistan, & Bangladesh depend on Himalayan glacier-fed rivers for sustenance.
When developed countries argue about 1.5 or 2 or 3 C, they're literally arguing over how many lives they are willing to condemn in the developing world. https://t.co/3Au6Ignk4y
Chat on Enormous Risks of Rapid Climate Disruption: 1 of 3 // Jan 25, 2019
Ongoing 2019 climate disruption is fast and furious. Abrupt climate system change cares not about human affairs, structures, politics, our livelihoods, and our precious but precarious civilizations. Disruption accelerates at ever faster rates wreaking havoc on our lives, with huge consequences. Media coverage on climate disruption, weather extremes, etc. in the main-stream is better, but often inaccurate; while risks and consequences are significantly downplayed.
———- ———- The Gist of Rapid Climate Disruption: 2 of 3 // Jan 26, 2019
This is the second of three videos, continuing on the same subject.
“I have a foreboding of an America in my children’s or grandchildren’s time — when the United States is a service and information economy; when nearly all the manufacturing industries have slipped away to other countries; when awesome technological powers are in the hands of a very few, and no one representing the public interest can even grasp the issues; when the people have lost the ability to set their own agendas or knowledgeably question those in authority; when, clutching our crystals and nervously consulting our horoscopes, our critical faculties in decline, unable to distinguish between what feels good and what’s true, we slide, almost without noticing, back into superstition and darkness…
The dumbing down of American is most evident in the slow decay of substantive content in the enormously influential media, the 30 second sound bites (now down to 10 seconds or less), lowest common denominator programming, credulous presentations on pseudoscience and superstition, but especially a kind of celebration of ignorance.”
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Update to the small multiples climate change map for 2018.
— Extinction Rebellion Australia (@XRebellionAus) January 26, 2019
Baffin Island, Canada—parts of the Arctic have now melted enough to expose landscapes that had been entombed in ice for 40,000 to 115,000 years—“The Arctic is currently warming two to three times faster than the rest of the globe….” https://t.co/fWSCpoqWD1@grist
Climate Change Disruption of Baby Male-Female Ratio // Jan 23, 2019
Two truisms on rapid climate change are that a) it affects just about everything, and b) it is happening much faster than expected.
With a) in mind, it is no surprise that climate change is affecting the ratio of male-to-female newborn babies. With temperature rise, there are more male babies born. However with acute stress to pregnant woman from weather extremes like floods, droughts, hurricanes, tornadoes, torrential rains as well as from other external events like earthquakes, tsunamis, and war, there are fewer male babies born. I chat on this.
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Along with Berkeley Earth's review of global temperatures in 2018, we have prepared an updated movie showing the evolution of Earth's surface temperature from 1850 to 2018.
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The team behind the Doomsday Clock warns of a "new abnormal" marked by risks — nuclear war, climate change, emerging technologies — and failures to manage them. https://t.co/00E6Nnj5Yu
Jet Stream Shift 17 degrees Southward to Greenland
Summary
Well known and respected creator of entertaining and comprehensible videos of sometimes daunting subjects, especially in climate system science, meteorology, oceanography and Earth Sciences at YouTube.
Frequently called upon for commentary by fellow educators, activists, and public. Physicist, Engineer, and part-time professor at the University of Ottawa. His primary interest is joining-the-dots on Abrupt Climate System Change to determine where we are heading, and how fast, and what it all means for us and our amazing planet.
Climate Change Disruption, Ratio of Male-Female Babies
Climate Change Disruption of Baby Male-Female Ratio // Jan 23, 2019
Two truisms on rapid climate change are that a) it affects just about everything, and b) it is happening much faster than expected.
With a) in mind, it is no surprise that climate change is affecting the ratio of male-to-female newborn babies. With temperature rise, there are more male babies born. However with acute stress to pregnant woman from weather extremes like floods, droughts, hurricanes, tornadoes, torrential rains as well as from other external events like earthquakes, tsunamis, and war, there are fewer male babies born. I chat on this.
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Please consider donating to support my work. I put a lot of time and effort into researching, studying and producing my videos so that you can learn how quickly our world is changing. Donating does not need a PayPal account, but simply a credit card. Please click here.
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