The floor of Crawford Lake in Ontario acts like a storybook, preserving Earth’s recent history in chronological order. Crawford Lake reveals the activities of local Iroquoian communities from the late 13th to 15th centuries, all the way through to the present day. This is because Crawford Lake is a meromictic lake, meaning that the dense bottom layer of water does not mix with the less dense upper layers. “The isolated bottom layer of water remains under disturbed, enabling the accumulation of clearly laminated valves which record precise information about the time during which they were deposited,” according to the Anthropocene Working Group. Experts have nominated Crawford Lake as representation for the start of the Anthropocene epoch, a proposed new geological era characterised by significant changes to the planet’s surface as a result of human behaviour. The Anthropocene is yet to be officially accepted as a unit of geologic time, but in 2016 a working group under the guidance of an International Commission on Stratigraphy subcommittee agreed that human behaviour has left scars so deep that they will remain evident even into the distant future. Sign up to our free Indy100 weekly newsletter One of the most notable markers of the Anthropocene is the appearance of plutonium, a radioactive material that appeared in the mid-20th century as a result of hydrogen bomb tests. “The presence of plutonium gives us a stark indicator of when humanity became such a dominant force that it could leave a unique global ‘fingerprint’ on our planet,” explained Professor Andrew Cundy, Chair in Environmental Radiochemistry at the University of Southampton and member of the Anthropocene Working Group. “In nature, plutonium is only present in trace amounts. But in the early-1950s, when the first hydrogen bomb tests took place, we see an unprecedented increase and then spike in the levels of plutonium in core samples from around the world. We then see a decline in plutonium from the mid-1960s onwards when the Nuclear Test-Ban Treaty came into effect.” Agreeing on a simple measure that defines the boundary between chapters in Earth’s history is just the first step. This measure requires agreement among scientists on a single location to define the boundaries. Known as the Global Boundary Stratotype Section and Point, or a golden spike, plays a crucial role in standardising these borders between epochs. The Anthropocene Working Group has been evaluating potential golden spike sites, from Oued Akrech, Morocco, to Alano di Piave, Italy. After spending three years assessing the qualities of a dozen potential golden spikes for the Anthropocene, finally the AGW has landed on Crawford Lake. “Crawford Lake is so special because it allows us to see at annual resolution the changes in Earth history throughout two separate periods of human impact on this small lake,” micropalaeontologist Francine McCarthy of Brock University in Canada, a voting member of the AGW, said at a press briefing. The lake’s unique properties, such as its small size, depth, and lack of water mixing create sediments that precisely record environmental changes over the past millennia. To officially establish the Anthropocene in the International Chronostratigraphic Chart, the golden spike at Crawford Lake must undergo a series of voting by various commissions and unions. If successful, it will mark the moment when human activities permanently altered the planet. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

TikTok is killing off an in-app feature that was a close copy of the social media platform BeReal

LAKE SUCCESS, N.Y.--(BUSINESS WIRE)--Sep 5, 2023--

With air conditioner demand surging, scientists are looking for ways to improve the energy efficiency of cooling systems and limit damaging...

Tesla Inc.’s latest discounts will newly qualify one of its models for federal subsidies that Elon Musk said

Apple says that its App Store has helped generate more than a trillion dollars for the first time, just days ahead of its major developer event. The App Store ecosystem facilitated $1.1 trillion in developer billings and sales last year, according to an independent study from The Analysis Group and commissioned by Apple. That is the result of rapid growth over recent years: that number rose 29 per cent on last year, and by 27 per cent in each of the two years before that. Those increases were partly a result of an increase in the apps that people use as the world opens up, such as taxi services, the report said. Apple’s announcement came just days ahead of its Worldwide Developers Conference, which begins on Monday. That is likely to see a whole new platform for developers to build apps for, with the launch of its new augmented reality headset. The report also comes amid increasing criticism over Apple’s power over the App Store, which is the only way to get apps onto the iPad and iPhone. Critics have argued that control means that Apple is able to make unfair demands on developers, including taking a cut from some sales made within apps and deciding what apps are available. Apple has commissioned a number of such reports in recent years, aimed at highlighting the economic impact of the App Store and the positive effects that can have for developers. The new report focused not on the money made by Apple, or through the store. Instead, it aimed to quantify how much money is made through the ecosystem built around the App Store, which includes billings and sales that are made through apps but without Apple’s involvement. More than 90 per cent of the billings and sales went specifically to the developers, with Apple not taking a cut, the report said. While Apple takes a cut from the sale of apps and digital goods and services within those apps, companies selling physical goods and other services are able to keep the full amount. Of the $1.1 trillion made last year, App Store developers generated $910 billion in total billings and sales from the sale of physical goods and services, $109 billion from in-app advertising, and $104 billion for digital goods and services, Apple said. Last year, that came particularly from travel apps and ride-hailing. Travel sales on iOS were up 84 per cent last year, the report said. It was not possible to say how much of that gain was the result of the world opening back up after lockdowns and other issues, compared with the specific work of Apple and those App Store developers, economists from Analysis Group said. The report also comes on the 15th anniversary of the App Store, which was launched in 2008. Apple said that iOS developers have earned more than $320 billion on App Store in those 15 years. “We’ve never been more hopeful about — or more inspired by — the incredible community of developers around the world,” said Tim Cook, Apple’s CEO. “As this report shows, the App Store is a vibrant, innovative marketplace where opportunity thrives, and we’re as committed as ever to investing in developers’ success and the app economy’s future.” Read More Major leak reveals details of Apple’s VR headset days before unveiling Apple is going to reveal something else alongside its headset, rumours suggest Trust and ethics considerations ‘have come too late’ on AI technology New iPhone update ‘completely changes how the lock screen works’ Apple lays bare danger of losing your health data Apple is making a ‘mixed reality’ headset. Here’s what that future might look like

Keep up with all the results of Call of Duty League Champs here to see which of the eight best CDL teams become 2023 Modern Warfare 2 World Champions.

TEL AVIV, Israel & LEHI, Utah--(BUSINESS WIRE)--May 30, 2023--

PHILADELPHIA--(BUSINESS WIRE)--Aug 30, 2023--

(Reuters) -Analog Devices Inc said on Wednesday that a turbulent economy would weigh on its third-quarter results, sending the chipmaker's

The toys on this list include "what were they thinking?" oddities—like a children's laboratory kit that included uranium—but also some seemingly innocuous recreational offerings.

xQc shared his insights and perspective on the trailer and his concerns about gaming with his dedicated fan base