Satellite imagery shows Northern California kelp forests have collapsed | Hacker News
| Most electricity production in Brazil is renewable, at much higher levels than most first world countries, including yours most likely. https://i.imgur.com/gMBJEQG.png Also look up a chart of CO2 production per capita and compare Brazil's to your country's before you start talking like you are. If you want to point fingers then fine, but at least do it properly and be informed. [1] |
| Fortunately, solar is now cheaper than coal. Doesn’t solve everything, but it’s not all doom. |
| The US has cut down and destroyed three quarters of a billion acres of primary forest. Plant a lot more saplings before you point a finger at nations in different states of development. |
| I thoroughly agree with you on coal! We need to get away from it as soon as possible. I just do not believe that nuclear fission power is the way anymore. 25 years ago I would have had another opinion entirely because the time frame would have been different. Let's say I agree to build a modern reactor type today. Planning and construction begin, it doesn't have a host of issues and cost explosions like the "new" Finnish plants [1], problems that are typical for modern large scale engineering projects in Europe. Then it will go online in 12 years and deliver the megawatts of power as planned. That's 12 years of progress in renewables at the same time. Just look at photovoltaics since 2006: https://en.wikipedia.org/wiki/Growth_of_photovoltaics[2] and that's just ONE out of many categories of renewables. A decade of progress while monstrous masses of concrete a poured for an 80s power plant design so it doesn't blow up in our faces and make land inhospitable for thousands of years. Is that where we should invest our cognitive energy? Nuclear waste disposal and upgrading/modernizing the many 1960s reactor designs out there would have been key but it hasn't happened because of cost. If nuclear was cheap, reliable and environmentally friendly it would have replaced coal a long time ago. But even Western states with tight proliferation control and a strongly embedded infrastructure in the Western security hemisphere are not opting to vastly extend nuclear fission power for a decent number of reasons. [1] https://en.wikipedia.org/wiki/Nuclear_power_in_Finland#New_c...[3] |
| I think many people who oppose building new nuclear power plants would also support shutting off coal first. |
| Thank you for sharing this. I literally got open water certified in Monterey this afternoon, and I will be signing up to volunteer! |
| > it also releases their spawn and can cause a even worse environmental disaster Wouldn't the spawn be released anyway? I can see how this strategy would be ineffective, but how is it worse? |
| They are probably pointing out that there could be a better way to kill/remove/move the urchin without releasing the spawn. Although it's very hard to get them off their spot and handling them. |
| Survivorship bias, humans make corrective actions to local environments all of the time and there are no noticeable issues. When something goes wrong it’s news though. |
| Yes I've taken some home from the beach and they're just fine. The eggs turn into ooze pretty quick so I don't know how viable they'd be commercially. |
| Do you know if they've looked at trapping the urchins? I believe traps are used to harvest urchins elsewhere and it works ok. |
| Same thing in British Columbia: over 90%, 5.7 billion have died since 2013 [1]. When I was a kid in the 90s, and starting to dive in the 2000s, sea stars were everywhere on the ocean floor, even really close to the city center of Vancouver. They were so ubiquitous that they were completely uninteresting to us locals. We would hear that BC was considered world-renowned for scuba diving quality, and think "How dull, it's just a shit ton of sea stars" (Of course, we were young, stupid, and also called them starfish not sea stars then) Me and some friends would go camping at an oceanfront spot on Vancouver Island every year, and go crabbing with mixed results. Half of the irritation was sometimes you'd be pulling up what felt like a really heavy crab trap full of goodness (We were always responsible and only kept the males over the legal size), only to find it full of sea stars who chased away the crabs and ate our bait. Then, about six or seven years ago, the sea stars just...disappeared. And they didn't come back. [1] https://www.cbc.ca/news/canada/british-columbia/sunflower-se...[5] |
| I remember my partners parents saying the same about star fish population around Hornby island. The time frame matches up as well. |
| There is a company called Urchinomics that is catching the purple urchins, then feeding them in a land based environment, then selling them worldwide as high quality uni.[1][2] The reason this is critical is that purple urchins can effectively starve themselves and go into hibernation with a virtually empty body. This virtually empty body is not desirable for either (a) traditional fisherman or (b) any predators (e.g. even fish that eat urchin know to not eat the urchins that have overgrazed a kelp forest as they know they are empty. If Urchinomics can get the unit economics to work out such that there is a financial incentive to catch a significant number of these urchin, that could change this situation. [1] https://www.urchinomics.com/[6] [2] https://www.npr.org/sections/thesalt/2019/09/09/756929657/sa...[7] |
| One reason we don't have kelp forests in Oregon is due to sea otters having been wiped out, which kept the urchins at bay.[0] Unfortunately, according to OPs article: Others have suggested bringing in another kelp forest predator, the sea otter, to help fight back the urchins. The problem with this appears to be that sea otters aren’t so interested in the skinny, starved urchins occupying the most barren areas, reports Anuradha Varanasi for Inverse. A separate study published this week in the journal the Proceedings of the National Academy of Sciences, suggests the otters do eat urchins but that they prefer the more well-fed residents of the coast’s remaining kelp forests to the so-called “zombie urchins” clinging to life in the denuded barrens. [0] - https://oregonwild.org/about/blog/lost-sea-otters-oregon-par...[8] |
| It seems the parameters for healthy ocean ecosystems is much tighter than on land and much more sensitive to change. The UK has similar issues (https://www.theguardian.com/environment/2021/mar/04/catastro...) and Australia is well documented. Outside of mechanical damage and over fishing, it's hard to know what could help, you can't really adjust ocean conditions, it's just too vast - for example something fundamental in relation to temperature and water acidity has changed meaning you can't just replant, it'd just suffer the same fate. It kind of implies to save the oceans climate change needs to be improved globally. [9] |
| We already have a surplus of people in developed nations. Having more people doesn't change anything. |
| > have as many kids as you can support How ironic considering that the very source of earths problems are because of humans. Somehow, the solution is more. Never a better response from, a human. |
| > I've found that, to keep a balanced diet without meat, it's quite a bit more expensive, and exceptionally more time consuming. Do you just gnaw on raw steak from the dumpster? I have been a vegetarian since 2009 mostly because it is so quick and convenient. Other than fruit and shelled nuts, I cannot think of anything faster and simpler than opening a can of beans. Frozen vegetables come pre-chopped, you just put them in a frying pan. If you are concerned about your health and lifespan, you should become vegan, like I did in 2017. It is the fastest, easiest way to lower your cholesterol and improve your cardiovascular function. I did not expect my exercise performance or subjective feeling to improve as much as it did. Anyway, here is a good source for ideas: https://nutritionfacts.org/[10] |
| > I've found that, to keep a balanced diet without meat, it's quite a bit more expensive, and exceptionally more time consuming. Mass produced meat is cheap because you don't pay it in $ but in pollution and animal suffering. I was a "ah whatever they're just animals" guy for a long time, but once you do your research it's basically impossible to eat cheap meat again. It's jot even a question of polluting less, it repulses me now Nsfl, this is a video from one of the supposedly "best" slaughterhouse in France: https://youtu.be/KWbgZQxd6J4[11] |
| Wanna do something for the environment? Don't have kids. One kid absolutely dwarfs all things suggested so far, combined. By far. |
| Unless you think that Niger will persist in poverty forever, or that people born in Niger never move to the US or Europe, then yes, it's still a worry. |
| So you're saying letting people from Niger immigrate to the USA is the worst possible thing for the environment? |
| The USA is basically set up to grind natural resources (and people) into money without concern for anything else so that's one way to look at it. |
| Interestingly, excluding the people part, that’s the same description given about Bitcoin and it’s environmental impact. |
| A big part of that 190x footprint is all the stuff the US makes and exports to other countries. It’s silly to attribute it all Americans. |
| And my point is we’re not necessarily under counting. Doing online advertising produces much less CO2 than say running a steel mill. |
| While I don't agree on the premise here. There's never gonna be the one thing solving the whole problem. It's gonna be the sum of a million little things. Don't let good be the enemy of perfect. |
| This kind of response is pretty monstrous. The logical next step would be to tell people to, well, stop living. Complete and total nihilism. |
| We tried in Europe and it just ended up with politician encouraging third world immigration to sustain industry, so now we have two problems. |
| Does a healthy ecosystem on planet earth have any value of there aren’t any humans here to see it? |
| Do what you want others to do as well. Yes you can't change everything yourself, but as a community you can. This is a problem of individualism. You can't fix that with more individualism. |
| 'consuming less' does not mean 'becoming primitive'. ever-growing consumption on a finite planet is unrealistic. |
| 20 miles is doable with an eBike or speed pedelec. Probably not as environment-friendly as a normal bike, but probably beats a car. And it’s healthier. |
| I will never have enough money in my entire lifetime to out-politic Google for one year, let alone the oil industry for the remainder of my life. |
| |
| Getting involved can take other forms than just giving money. And even whatever little money you can give, if multiplied by others who care, can help. |
| This is self-selection against those willing to acknowledge and work towards solving the problem. |
| Done. I have no children, nor plans for children. Sadly, a childhood friend of mine has made up for myself and my partner 5 times over. |
| How do you know that this was in response to you? Isn't it more likely that it was in response to another person? |
| They do, it’s true, but not on the time horizon that we have been seeing in the last 50 years which seems to be speeding up |
| How do we know that? I’m not disagreeing with you- but I can’t imagine any historic evidence could rule out the existence of a highly volatile and cyclical population change. |
| The size of the sea otter population is almost certainly a result of human activity. In particular the fur trade and fisheries. |
| It’s funny how we are aware of the damage, and yet everyone still wants to live like a millionaire It’s not possible. |
| > It’s not possible. Why not. You can live like a millionaire and not have kids. Having a kid is many factors worse than living a millionaire. |
| Really, really depends on how you live. People in first world countries are worse for the environment than people in third world countries by a wide margin per capita. |
| Yes, because we exported our environmental responsibilities regarding plastic manufacturing and processing to those countries, which inevitably pollute for us. |
| China and India conduct a huge amount of their economic activity in order to satisfy the demand of people in other places though, i.e. that plastic, coal burning, etc. is mostly on us. |
| To further clarify this comment: living like a millionaire (consuming more in general) increases your carbon footprint. |
| The US is effectively zero population growth, as are many other affluent parts of the world. This seems like an overly simplistic assessment. |
| I am assuming we need to go negative in population growth, current population levels are not sustainable. |
| iirc dogs are also equivalent to the average emissions of a person in Vietnam. So best to cut them out as well. |
| Are you advocating for only certain people not to have kids (in which case, what’s your criteria on who should and who shouldn’t), or that no one should have kids (e.g. the humanity should die out)? |
| This is such a sick mindset. "Sure, we can run the world down for a bit -- all we have to do is sacrifice the opportunity of future generations to experience the world" |
| I don’t have a sister. Did my parents rob her of the opportunity to live a meaningful life? There is nothing that could be robbed of anything. |
| vast majority of those 8 billion people use very little resources. It's over consumption of the worlds top 10% (probably includes you and me) that caused most of the damage. |
| > You can't have all the modern day luxuries (cars, airplanes, electricity 24/7) and somehow expect everything to just "hum" along. [Citation needed] |
| Amen to that, the sooner people realize some above and below ground trains can solve a number of issues and create much more prosperity, the better. |
| Why hello, fellow reader of https://transitcosts.com > You will discover that fighting to make trains a better option than cars is harder as a democrat where everyone agrees but wants to put their finger in the pie, than as a republican where everyone isn't interested in trains but might let you get by with a small amount just to keep you quiet (this won't be enough to build a useful system, but it might be enough to prove it can be cost effective) And where is train hush money being handed out in the last four years? Pretty sure that's out of the frying pan into the fire. [12] |
| I don't want to diminish that, from a brief skim of wikipedia this looks like a typical American light rail with vast suburban extensions, "park and ride" stations rather than dense development around station. This sort of transit just allows for further sub-urbanization and car culture when the highways fill up. It doesn't promote cross-sector density (just larger central business districts), and it doesn't reduce the externalities of the American way of living. To be fair, this is by no means a mistake exclusive to red states. The WMATA in DC, and LIRR and Metro North in NYC all commit the same sin. https://upload.wikimedia.org/wikipedia/commons/b/bc/Salt_Lak... Guess the mountains hem it in one some sides; that gives me some hope. Maybe someday it will look more like https://c1.staticflickr.com/1/659/32455034626_dc15a3023b_o.j...[13][14] |
| "Carbon neutral" isn't the same as "non-polluting". "All" you need to be carbon neutral is to not burn fossil fuels for your energy. |
| Yeah, but we don’t know if this kelp thing is because of CO2 emissions, and tire runoff actually does kill marine life in nearby rivers. |
| Certainly, I mean that carbon emissions are generally a bigger problem than pollution, so we should probably prioritize that first. |
| >My understanding is this is extremely difficult short of killing myself. That's not really how it works. The only way humanity is at 7 billion and counting is due to advances in engineering, farming, etc. Look for example at two extremes, starting with the CHAZ farm. You remember, the cardboard boxes with potting soil thrown on top by kids who had no idea what they were doing? Imagine if the entire planet was full of these sort of primitive smooth brains. You'd be back to hunter gatherers and a global population of ~20,000 or so rather quickly. Now look at the opposite end of the spectrum, Hokkaido rice farmers. https://www.hokkaido-kome.gr.jp/english/about/[15] Despite having a less favorable climate for rice growing, Hokkaido farmers of the frozen north produce some of the highest yields and highest quality rice in Japan. When you look outside of Japan, it's even more impressive as Hokkaido consistently has higher yields than SE Asian countries with warmer humid climates more suited for rice growing. This is a small number of people in Hokkaido, with power to change their entire world around them. They do so through science and engineering. Access to irrigation, farm equipment, and fertilizer is far more important than climate. People who want laws to restrict CO2 would choose to destroy Hokkaido farmers. Farm equipment after all releases CO2. So does fertilizer production and transportation. So does tillage. These people seek to make us all hunter gatherers again. Solving problems is not about squeezing yourself into the limits of your current system, it is about changing the limits of the system with science and engineering. Said more eloquently, "The reasonable man adapts himself to the world: the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man." -- George Bernard Shaw |
| The obvious thing is to install solar on your roof. I'm hoping my system goes live this week (I've been hoping that for 4 months, but snow meant they couldn't get on the roof to finish that last bit) |
| making a bigger effort to plant trees this year, I'm well ahead for the year, but I've still got many to make up for. |
| We've decided not to do anything. Any other conclusion is foolish optimism. The effects will happen. |
| Another solution is to utilize algae, but it would destroy ecosystems at the scale we'd need it. Still a fun thought exercise. |
| Individual actions are the raw material of a collective shift in mindset that adds up to hard societal pressure to create laws that do make a difference. |
| Better to sing on a sinking ship than to die frustrated, angry and victimized. There is grace in fighting against impending doom. Life can be measured by how we approach things. Never lose hope. :) |
| I feel encouraged to see this comment. Thank you for posting it. I've been reading Thomas Merton's _Raids on the Unspeakable_ recently and I sense some of that same heart in what you write. |
| Absolutely false. The earth has 200 million square-miles of area, so your portion of the 7.6 billion people equates to 0.0263 square miles. Do your part to keep that virtual area as clean as possible! |
| > Even if Biden isn’t reelected in 4 years Biden has said he is not going to stand for reelection. |
| Source? I see some speculation, and comments from Biden saying he’s planning to run again. |
| The larger abalone had already been wiped out in the Monterey area by sea otters and withering syndrome even before the purple urchins ate most of the kelp. Otters are the primary predators for abalone and when the otters were hunted nearly to extinction then the abalone population exploded. But then otters were protected so they ate many of the abalone, and withering syndrome killed others. I still occasionally see small abalone while diving. https://wildlife.ca.gov/Conservation/Laboratories/Shellfish-...[17] |
| Generally the US National Park Services allows people to take two gallons of uninhabited shells from national seashores. |
| same thing also in the north of Spain with equivalent species of macroalgae. Temperature raised a few degrees, recruitment stopped, and most laminaria submarine forests vanished. |
References
- ^ https://i.imgur.com/gMBJEQG.png (i.imgur.com)
- ^ https://en.wikipedia.org/wiki/Growth_of_photovoltaics (en.wikipedia.org)
- ^ https://en.wikipedia.org/wiki/Nuclear_power_in_Finland#New_c... (en.wikipedia.org)
- ^ https://g2kr.com/ (g2kr.com)
- ^ https://www.cbc.ca/news/canada/british-columbia/sunflower-se... (www.cbc.ca)
- ^ https://www.urchinomics.com/ (www.urchinomics.com)
- ^ https://www.npr.org/sections/thesalt/2019/09/09/756929657/sa... (www.npr.org)
- ^ https://oregonwild.org/about/blog/lost-sea-otters-oregon-par... (oregonwild.org)
- ^ https://www.theguardian.com/environment/2021/mar/04/catastro... (www.theguardian.com)
- ^ https://nutritionfacts.org/ (nutritionfacts.org)
- ^ https://youtu.be/KWbgZQxd6J4 (youtu.be)
- ^ https://transitcosts.com (transitcosts.com)
- ^ https://upload.wikimedia.org/wikipedia/commons/b/bc/Salt_Lak... (upload.wikimedia.org)
- ^ https://c1.staticflickr.com/1/659/32455034626_dc15a3023b_o.j... (c1.staticflickr.com)
- ^ https://www.hokkaido-kome.gr.jp/english/about/ (www.hokkaido-kome.gr.jp)
- ^ https://joebiden.com/climate-plan/ (joebiden.com)
- ^ https://wildlife.ca.gov/Conservation/Laboratories/Shellfish-... (wildlife.ca.gov)