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Videos (368) | Sift Talk (21) | Blogs (11) | Comments (1000) |
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Why we are nowhere near ready for space colonies
I think if you want to make Earth similar to Mars all you have to do is remove the magnetosphere. It wouldn’t take long (geologically) for solar winds to rip away the atmosphere and radiation to sterilize the surface. Perhaps a necessary first step to colonization is a foolproof synthetic magnetosphere. How else do you shield an entire planet/moon?
If I recall, the biggest failure of biosphere2 was, with all that money, planning, and brain power they forgot to factor in the oxygen the bacteria in the soil would use and factor in the formation of calcium carbonate on the exposed concrete and had to (secretly) add pure oxygen to the system at least once.
Also contributing to the failure, Steve Bannon was put in charge (despite major objections by the team) and immediately the project fell apart among allegations of abuse and safety concerns he admitted in court… “ He also testified that when the woman submitted a five-page complaint outlining safety problems at the site, he promised to shove the complaint "down her throat".”…the crew sued over this and won $600000 in compensation!
How The Dinosaurs Actually Died
“Witnesses”? 😂 I have some questions for them.
There’s actually more evidence the asteroid wasn’t the major dinosaur killer…the KT boundary layer, created by the asteroid dust and charcoal from global fires is NOT full of dinosaur bones. If one event killed 75% of species and 95% of all biomass, that geological layer would be absolutely full of fossils, but it’s not…it’s nearly empty, but the layers preceding it show a steady decline in animal populations long before the final death blow.
Yellowstone, the American super volcano, is overdue for a similarly disastrous eruption.
Our grasp of volcanology is far too tenuous to claim we would have a million years of warning before a similar major eruption. We might get no warning at all. Surprise eruptions aren’t abnormal even with all our monitoring…and the strength of eruptions is almost always a surprise.
The acidification of the ocean that preceded the other climate-caused extinction events is occurring today. Once diatoms and plankton can no longer create their exoskeletons the ocean food web dissolves, then the land food web dissolves, then clouds of hydrogen gas start erupting from the deep ocean when bacteria consume the billions of tons of dead ocean life, further poisoning the oceans and atmosphere. Yes, that will likely take hundreds or even thousands of years to play out, but the food webs are already falling apart from other pressures before the plankton even fails. Interesting unprecedented times are ahead.
A cat, trying to drink water from a kettle
Yes…Unless acted on by some outside force, like unequal pressure between the now pressurized interior of the kettle and the exterior atmospheric pressure. When he blows air in (see it bubble) it would pressurize the kettle body (if the lid was sealed) and push the water in the spout above the level in the body.
I thought the same thing but remembered water seeks its own level
“Water seeks its own level” is an expression referring to the fact that if water is free to move than all surfaces exposed to the atmosphere will be at the same height. That is the lowest energy state; potential energy is released when water at a higher point flows down into the depression
A cat, trying to drink water from a kettle
I thought the same thing but remembered water seeks its own level
“Water seeks its own level” is an expression referring to the fact that if water is free to move than all surfaces exposed to the atmosphere will be at the same height. That is the lowest energy state; potential energy is released when water at a higher point flows down into the depression
If only the lid were sealed his blowing through the spout would have pushed the water up the spout where he could drink. HALP HIM HOOMAN!
The Biggest Science Story of the Week
*doublepromote someone else finally noticing global dimming as a significant factor in global warming.
Global dimming from excess sulfur dioxide may be responsible for cutting the current excess anthropogenic heat in the system by between 15% to 50% depending on the study.
https://www.cnbc.com/2022/10/13/what-is-solar-geoengineering-sunlight-reflection-risks-and-benefits.html
What this means is, if we stop polluting tomorrow, the CO2 and other greenhouse gases will continue to warm us at the same rate for decades to centuries, but the sulfur dioxide that has blocked between .25 to 2 degrees Celsius temperature rise will be gone almost immediately, and a significant sudden rise in temp will be the result kicking off or feeding more feedback loops.
While it may seem he’s onto some global warming solution…just put more sulfur dioxide into the atmosphere…that ignores the lower growth rates and lost solar production it causes by deflecting a significant percentage of sunlight, both adding to net CO2 added to the system.
The incredibly scary part is the whitehouse and other international governments are actively researching ways to inject sulfur dioxide into the upper atmosphere despite knowing it has so many issues.
There’s no easy fix.
Mars rover captures first ever sound of dust devil
WTF? The video is about a 10 second low volume sound recording, and they can’t even mute their stupid atmosphere music during the recording?
People are getting dumber by the day. Arrrrgh!
“Don’t Look Up” in Real Life
19 of the 20 hottest years ever recorded have occurred in the last 21 years.
8 of the hottest 8 years ever recorded were the last 8 years.
Black is not white. Up is not down. Hot is not cold….no matter how many times you say it, Bob. Being too dumb to even understand the science or its implications have you just denying it….like if you don’t understand it must not be true. 🤦♂️
It is well known that the right’s MO is to just lie about what their opponent claims, then debunk their own lie, ignoring the actual claims. It’s the best you can do, and the right’s constituents are so intellectually absent, incurious, and not just willing but wanting to be spoon fed propaganda that you buy it without ever investigating a thing. I know this to be true, because everyone who actually looks at the data (and doesn’t just misrepresent it completely) comes to the same conclusion (unless they’re selling something).
2030 did not come from Greta. It came from multiple climate reports, except for those who said we had less time.
It’s a purposeful intent to mislead the public to say the reports say ultimate disaster happens in 2030, they don’t, and the right knows they don’t say that and knows that’s not what climate activists say either…it says at current rates (when the report was written) by 2030 1.5C rise would be locked in, unavoidable. CO2 can last 300-1000 years actively in the atmosphere. Stopping adding CO2 and methane when we are at the line of 1.5C rise is planning for disaster with no backup and no margin for error when the stakes are literally survival of the species and civilization. In fact, rates have increased since the data was collected, so 2030 is too late….2000 may have been too late to stop runaway climate change, but we can still minimize or slow the impacts.
1.5C is when we lose control and feedback loops (likely) take over our ability to have any control. It’s too bad so many idiots are too dumb to comprehend that yet still have the resources to effect the outcome. “Mea culpa” isn’t going to restore the planet when they finally admit the undeniable, neither is their heads on pikes nor their children being used as food, but that’s where we’re going. Too bad we aren’t there yet, it would save a hell of a lot of problems if we just eradicated the irresponsible money worshiping morons in favor of people who put a livable planet above record quarterly profits.
Climate change denial
“Don’t Look Up” in Real Life
Lol.
Reasontv, the network of the insanity from Stossel, with the stated position that “free market and deregulation is the solution to any and every problem imaginable”. That’s the best you’ve got!?! Then you’ve got NOTHING. You actually complain that CNN isn’t trustworthy, then you post from Reasontv!?! Er mer gerd! 🤦♂️ why not just post Beck or Jones?
They completely misrepresent what the report, and climate activists, and politicians have said with bad editing and lies here, no surprise, you posted it, it was guaranteed to be DISHONEST nonsense propaganda.
Land temperatures reached 1.3C above pre industrial norms in 2020. Every prediction made has come true well ahead of schedule. Temperature rise is accelerating, it’s not the flat straight line nor a slowing rate like they showed but an increasing curve. The last 7 years were all in the top 10 hottest ever, the last decade had 9 of the hottest ever, and we are experiencing a global drought never seen by modern man….but according to you, nothing burger, totally normal, chicken little.
https://www.iflscience.com/nine-of-the-top-10-hottest-years-ever-all-occurred-in-the-last-decade-62232
There is one thing I agree with, the “12 years to stop climate disaster” notion (not what the science says btw) is wrong. We have -20 years +-. The CO2 we put in the atmosphere today will effect climate for hundreds to a thousand years, the nitrous oxide for about 120, methane around 10. We have reached the point where natural emissions will soon take over, adding more than humans ever did. Scientists estimate that’s at 1.5C, but every estimate they’ve made public has turned out to be optimistic in the extreme, so 1.5C is almost certainly wishful thinking and 1.25C is more likely the threshold. We can both mitigate the effects and slow the rate of change, but at this point staying below 1.5C is a pipe dream no one is actually even working towards.
I think the reality is that, using current models, assuming no surprises or feedback loops, we have (now 8 ) years before the adding these greenhouse gasses in the atmosphere will carry us well beyond 1.5C above “normal” with no additional emissions needed….not that we will definitely hit 1.5 by 2030 but we will be able to coast there even with zero emissions.
I know, math and science together, way too hard, better to just listen to the oil spokesmen who say “it’s a hoax, pay no attention to the cities reaching 130F, the unprecedented heat globally, the rapidly melting (or melted) glaciers that historically provide drinking water for 1.9 BILLION people, or the never before seen by man extreme global droughts, they’re all normal and natural and why are you still talking about it?”.
No surprise, one more undeniable, in your face disaster you simply deny exists….like Covid, Jan 6, Russian election interference, -3.5%gdp, Trump terrorism, etc.
Can we have your name so when the global food supply is insufficient we know who’s family to deny food?
Silly nonsense
Crazy Rocketman: Rocketman riding the Rocket Board!
From Wikipedia, the free encyclopedia
Asbestos (pronounced: /æsˈbɛstɒs/ or /æsˈbɛstəs/) is a naturally occurring fibrous silicate mineral. There are six types, all of which are composed of long and thin fibrous crystals, each fibre being composed of many microscopic "fibrils" that can be released into the atmosphere by abrasion and other processes. Inhalation of asbestos fibres can lead to various dangerous lung conditions, including mesothelioma, asbestosis, and lung cancer, so it is now notorious as a serious health and safety hazard.
You cruel bastard! That would be like rubbing your junk on a cactus!
I hope he's wearing asbestos undies.
We WILL Fix Climate Change!
What’s he mean “young people”? I’m 50, I’ve felt that way since 1990 because I pay attention. We are addicts, addicts use until they die, they don’t quit because their health suffers.
At 3 degrees some developing countries won’t be able to feed their population!?! WTF?! That was the case before any climate changes, dummy. It’s bad now. It will be apocalyptic relatively soon…like decades, not centuries.
WILL cause trillions in damage!?….guess again, already happened. It WILL cause tens of trillions in damage per year, eventually outpacing global gdp.
What scientists are he counting when he says “most agree” we won’t see this kind of future? Certainly not climate scientists, they agree it’s happening, and none see it even slowing, much less getting better. From what I saw, they just went on strike because they’re sick of being ignored.
Leveled off, eh? Look at your own graph to see that China’s coal consumption went up by 5000 twh equivalents since 2010, and is insanely massive…it went up by more than the US used at its highest levels (in his timeline). But he calls that “leveled off”. Who is this guy? He’s insane or lying through his teeth.
Solar and wind have been better than coal economically for decades, but we haven’t switched over, have we?
Where does he get his statistics, because every time I see real numbers we’ve only slowed our increased emissions by 4%, we have not actually reduced them….like saying Obama reduced the military budget because he didn’t increase it as much as previous administrations. It’s asinine.
India isn’t building trillions in solar, they’re building fossil fuel power plants and hydro electric, also disastrous for the environment….and useless after their glaciers fail.
The CO2 in the atmosphere will be there for 300-1000 years, carbon capture is a ridiculous pipe dream that completely ignores the scope of the problem. Methalhydrate is already destabilized, and it’s 25 times as potent as CO2. The total global amount of methane carbon bound up in these hydrate deposits is in the order of 1000 to 5000 gigatonnes – i.e. about 100 to 500 times more carbon than is released annually into the atmosphere by the burning of fossil fuels (coal, oil and gas). It’s melting now faster every day, and will surpass human carbon emissions.
None of his “requirements” are happening. What we need is less people….like 90% less.
Progress is being made, minor progress in small amounts on tiny scales…so are increases in emissions but on massive scales and unfathomable amounts….emissions that needed to be at zero decades ago to save civilization as we know it. Climate refugees exist today in huge numbers, think how difficult 1 million Syrians were for Europe to absorb, now multiply by 2000 or more when all equatorial nations become uninhabitable. Where will we grow food with refugees covering every bit of land? Get real.
He admits that stopping warming below 1.5 degrees is impossible, and 3 degrees before 2021 likely (many say by 2050). Did he forget that 1.5 degrees warming is where we lose control and feedback loops make our emissions moot?
Do you even science, dude?
He gave me zero hope, because I know most of his pie in the sky “hope” is utterly ridiculous and runs contrary to reality and human nature. I wanted some good news, I got pablum.
Booo Kurzgesagt. Try being honest and not ignoring the facts, please. BOOOOO!
Australia's Honest Government Ad | COP26 Climate Summit
I think the worst part of these summits is their stated goals.
Paris intended to keep warming to 1.5 degrees by 2050 (no real plan beyond then)…but you might recall, 1.5 degrees of warming is considered the tipping point where feedback loops and natural processes outpace human inputs, meaning even if we hit zero emissions by 2050, and if everyone kept to their Paris agreement promises, and if other nations don’t continue to ramp up emissions, and if unforeseen feedback loops aren’t stronger or faster acting than predicted, we still lose control completely by 2050. That’s the best plan we have, runaway climate shifts in <30 years AT BEST….and no one seems to be living up to even that planned disaster of a plan. Emissions aren’t being cut, they’re increasing. Feedback loops are ramping up 40 years earlier than predicted. All the while, people are complaining that gas is over $3 (I haven’t seen it under $4 in decades where I live) and insisting we adopt some heavily polluting power generation instead of investing in green energy solutions. People assume, it seems, that some last minute fix will solve climate change, ignoring the fact that emissions from today are reactive in the atmosphere for between 25 and 150 years, so we needed to be at net zero 25 years ago to even start effecting the atmosphere today…and some emissions from the industrial revolution are still effecting us now. Net zero by 2050 (a pipe dream, and the best plan so far) is planning to fail completely…like turning off the blast furnace in your house when the thermometer hits 450.5 inside and thinking you can stop it from burning down.
If Covid taught us anything, it’s that there is 0% chance humans will be able to cooperate enough to tackle climate change. People were asked to simply wear a mask and distance a bit to save their lives, and enough refused to do it that the methods that worked beautifully elsewhere failed miserably to control a virus. If we can’t pull off such a simple, blatantly obvious plan against a virus, what chance is there of cooperation across the board to sacrifice enormous amounts of money and completely revamp our wasteful way of life in uncountable ways to stop something seen as a future problem by many? IMO, there so little chance of pulling it off that it’s statistically correct to say there’s absolutely no chance at all.
PFAS: Last Week Tonight with John Oliver (HBO)
Nonsense. Pre industrial agriculture wasn’t very damaging in most cases…and when it was it was on a minuscule scale compared to industrial agriculture.
Pre industrial building wasn’t excessively environmentally damaging in most cases, certainly not to the point where it endangered the planet or it’s atmosphere.
It's utterly ridiculous hyperbole to say we have to be cavemen to not destroy our environment. We don't even have to revert to pre industrial methods, we just have to be responsible with our actions and lower the population massively. With minor exceptions, pre industrial farming caused little to no permanent damage, and it was almost all easily repairable damage. (With a few exceptions like Rapa Nui that may not have been over farming but cultural damage, we aren't exactly certain what happened there).
I eat berries now, don't you? I grow raspberries, blackberries, black raspberries, blueberries, strawberries, and Tay berries myself. People would be healthier if they ate berries, and they're tasty too. What?!
Yes, around 7 billion need to die (without procreating first). Better than all 9 billion.
There’s a huge difference between being occasionally deadly and so insanely toxic we destroy our own planet in under 200 years to the point where our own existence is seriously threatened.
Edit: toxicity levels matter as much as exposure levels. Cavemen impacted their environment at levels well below sustainability (mostly….the idea they killed the mammoths or mastodons off by hunting is, I believe, a myth….natural environmental changes seem much more likely to be the major influence in their extinction.). Per capita, modern humans have a much larger, more detrimental footprint than premodern humans, exponentially larger….and there’s like a hundred thousand times as many of us (or more) too. We need to reverse both those trends drastically if we are to survive long term.
Yes, progress includes risk, but risk can be managed, minimized, and not taken when it’s a risk of total destruction. We totally ignore risk if there’s profit involved.
This is a night time comedy show, not a science class. I think you expect WAY too much. It points out that there is a problem, it doesn’t have the time, or the audience to delve into the intricate chemical processes involved in the manufacture, use, and disposal of them. It touched on them, and more importantly pointed out how they’ve been flushed into the environment Willy nilly by almost everyone who manufacturers with them.
By that logic, Newt, its back to caves and eating berries for everyone. And 7 billion people need to die to make planet Earth sustainable.
Everything civilization does is toxic in some way. Even living in caves was deadly, ask the Mammoths.
I like how youre taking everything responsibly but in this case you might be lumping too many things into one problem. If we strive for any progress at all we have to take risks.
Maybe the consensus will be that we cant handle the production problems and need to ban the poly stuff, but this video was not the compelling analysis that would even push me in that direction.
After the recent IPCC climate report an old 'Newsroom' clip
*doublepromote someone else finally telling the truth, even if it is just a fictional tv character. I’ve been saying the same thing since around 2000. If we went all in, halted all co2 emissions and all methane emissions 20 years ago, and invested in methods to catch and sequester what we already emitted, we might have avoided the tipping point where we are no longer in control….but instead we increased emissions every year, flooring it towards that cliff and hitting the nitrous button.
*quality if inconvenient truths
That tipping point was reached well over a decade ago when methane started to melt out of permafrost and the deep ocean where it has been frozen for eons. It’s capable of causing warming >80 times as much as co2 short term, >25 times as much long term, and is boiling out at rapidly increasing rates. Pre 2006 it’s estimated around .5 million tons per year…2006 it was measured at 3.8 million tons…by 2013 that was up to 17 million tons with the trend increasing. More recent estimates are hard to find, but it’s agreed that as temperatures climb not only are hydrates melting much more rapidly, bacteria are also accelerating decomposition in the thawed permafrost, and they emit methane. The Arctic is warming up to 5 times faster than the average global temperature. It’s likely over 50 million tons per year by now if not much higher.
Shakhova et al. (2008) estimate that not less than 1,400 gigatonnes (Gt=1 billion tons) of carbon is presently locked up as methane and methane hydrates under the Arctic submarine permafrost, and 5–10% of that area is subject to puncturing by open taliks. They conclude that "release of up to 50 Gt of predicted amount of hydrate storage [is] highly possible for abrupt release at any time". That would increase the methane content of the planet's atmosphere by a factor of twelve in one shot….game over.
Bear in mind, 1 cubic meter of hydrate contains >160 cubic meters of methane gas at atmospheric pressure.
The amount of increase from bacterial emissions in rotting permafrost is debatable, but even the lowest estimates are insurmountable.
This is only one of dozens of KNOWN feedback loops already in action, and there are definitely unknown feedback systems we can’t predict.
This does not mean there’s nothing to be done, we can still mitigate the damage somewhat, maybe slow the rate of change enough that some animals and plants more advanced than bacteria survive long term. It does mean a massive >99% culling of humanity, a total shift in civilization from a money based civilization to one focused on survival, and likely an unavoidable mass extinction rivaling any previous extinctions.
West Coast Cherry Crops Destroyed By Heatwave
And now the swarms of locusts (ok, really grasshoppers) begin.
Utah farmers, already struggling with drought and extreme heat, are being plagued by grasshoppers destroying what little crops they managed to grow. Early heat caused an early hatch, leading to swarms. Many farmers abandoned their crops rather than go through the expense of spraying a crop they have no water for, allowing a bad situation to get exponentially worse. Hay may soon be in short supply along with produce.
If it's a mild winter, expect worse next year when their eggs hatch. Without improvement in the weather, colder in winter wetter in spring and cooler in summer, farmers nationwide expect next year to be far worse than this year's disastrous growing season. Nevada and Arizona are due to lose their main water source soon, and California expects more water shortages statewide as reservoirs near empty and aquifers go dry.
Sure sounds like the climatologists were correct, if anything minimizing the effects and rate of change from climate change; heat, drought, plagues, swarms, fires. They were not exaggerating them @bobknight33. These are exactly what they predicted, just a decade early, and exactly what you denied would happen. All time high local temperatures were reached worldwide in the last month including ground temperatures of 118 F in arctic Siberia and 130 F last weekend in Death Valley, the hottest atmospheric air temperature ever seen on the planet since humans existed.
But nope, climate change is a liberal hoax, they just have the entire planet lying to support it, destroying their own crops and cooking their citizens to keep the lie going. 🤦♂️
I hope you live long enough for your children to accept that their disastrous future was caused by you and your ilk and abandon you to the baking streets in your old age to starve and bake. You ignorant and dishonest deniers deserve worse for decimating the only planet we have. Your children will come to that conclusion, the only question is when.
Meteor Fireball over Eagle, ID - 7/3/21
It always amazes me the amount of light these relatively small meteors give off when hitting the atmosphere. I've always wondered just how terrifying one the size of the Chicxulub meteor must have been.