Latest news with #GreatDying
CNN
22-07-2025
- Entertainment
- CNN
Earth spinning faster, AI companions, world's most powerful passports: Catch up on the day's stories
5 Things AIFacebookTweetLink Follow 👋 Welcome to 5 Things PM! The US is on the verge of dropping out of the top 10 ranking of the world's most powerful passports. Meanwhile, an Asian superpower continues to hold onto the No. 1 position. Here's what else you might have missed during your busy day. Earth is spinning faster this summer, making the days marginally shorter and attracting the attention of scientists and astronomers. Some days have clocked in at slightly less than the standard 24 hours, and timekeepers are considering an unprecedented move. President Donald Trump signed an executive order in January mandating that the documents be declassified and released. As a result, more than 240,000 pages related to the FBI's surveillance of the civil rights icon became public. This is what we know so far. Some celebrity deaths hit the Black community differently. That's the case with Malcolm-Jamal Warner, who died in a drowning accident in Costa Rica. His passing has been met with the type of deep grieving usually reserved for family members. The 'Great Dying' wiped out 90% of life on Earth, and then the planet became lethally hot for 5 million years. A recent fossil discovery warns why we should be worried about a new potential tipping point. Kids are asking artificial intelligence chatbots for advice and help solving their problems. A new study found that more than half of teens use them regularly — and that's a problem. get '5 things' in your inbox If your day doesn't start until you're up to speed on the latest headlines, then let us introduce you to your new favorite morning fix. Sign up here for the '5 Things' newsletter. 🎶 Birthplace of the blues: The musical roots run deep in Clarksdale, Mississippi. CNN anchor Laura Coates visits important landmarks, sits down for a delicious barbecue lunch and sees firsthand why the juke joints are special. US to withdraw from UN scientific and cultural agency UNESCO again Trump announces trade agreement with the Philippines and terms of deal with Indonesia Ozzy Osbourne, Black Sabbath singer and godfather of heavy metal, dies at 76 just weeks after farewell show That's how many Americans say the Israeli military's actions in Gaza are fully justified, according to a CNN poll. ⭐ Famous faces: There's no red carpet at the Studio City Farmers Market, but Hollywood A-list celebrities are as plentiful as the produce. 'The longer we fail to tackle climate change with the urgency it requires, the more such things will impact us all.' Tim Benton, a professor of population ecology 🍅 Prices soaring: Extreme weather caused by climate change is driving up the cost of food worldwide and posing wider risks to society, a new study found. ⚖️ The Department of Justice reached out to which former associate of Jeffrey Epstein for a meeting?A. Prince AndrewB. Alan DershowitzC. Alexander AcostaD. Ghislaine Maxwell⬇️ Scroll down for the answer. 😴 Sleep aid: Are you tossing and turning every night? More physical activity can lead to better rest, but new research shows you don't have to run a marathon or visit a gym to reap those benefits. These three exercises can help. 👋 We'll see you tomorrow.🧠 Quiz answer: D. The DOJ said it reached out to Ghislaine Maxwell for a meeting amid backlash over the Trump administration's handling of files related to Epstein.📧 Check out all of CNN's newsletters. Today's edition of 5 Things PM was edited and produced by CNN's Kimberly Richardson, Sarah Hutter and Emily Scolnick.
CNN
22-07-2025
- Entertainment
- CNN
Earth spinning faster, AI companions, world's most powerful passports: Catch up on the day's stories
5 Things AIFacebookTweetLink Follow 👋 Welcome to 5 Things PM! The US is on the verge of dropping out of the top 10 ranking of the world's most powerful passports. Meanwhile, an Asian superpower continues to hold onto the No. 1 position. Here's what else you might have missed during your busy day. Earth is spinning faster this summer, making the days marginally shorter and attracting the attention of scientists and astronomers. Some days have clocked in at slightly less than the standard 24 hours, and timekeepers are considering an unprecedented move. President Donald Trump signed an executive order in January mandating that the documents be declassified and released. As a result, more than 240,000 pages related to the FBI's surveillance of the civil rights icon became public. This is what we know so far. Some celebrity deaths hit the Black community differently. That's the case with Malcolm-Jamal Warner, who died in a drowning accident in Costa Rica. His passing has been met with the type of deep grieving usually reserved for family members. The 'Great Dying' wiped out 90% of life on Earth, and then the planet became lethally hot for 5 million years. A recent fossil discovery warns why we should be worried about a new potential tipping point. Kids are asking artificial intelligence chatbots for advice and help solving their problems. A new study found that more than half of teens use them regularly — and that's a problem. get '5 things' in your inbox If your day doesn't start until you're up to speed on the latest headlines, then let us introduce you to your new favorite morning fix. Sign up here for the '5 Things' newsletter. 🎶 Birthplace of the blues: The musical roots run deep in Clarksdale, Mississippi. CNN anchor Laura Coates visits important landmarks, sits down for a delicious barbecue lunch and sees firsthand why the juke joints are special. US to withdraw from UN scientific and cultural agency UNESCO again Trump announces trade agreement with the Philippines and terms of deal with Indonesia Ozzy Osbourne, Black Sabbath singer and godfather of heavy metal, dies at 76 just weeks after farewell show That's how many Americans say the Israeli military's actions in Gaza are fully justified, according to a CNN poll. ⭐ Famous faces: There's no red carpet at the Studio City Farmers Market, but Hollywood A-list celebrities are as plentiful as the produce. 'The longer we fail to tackle climate change with the urgency it requires, the more such things will impact us all.' Tim Benton, a professor of population ecology 🍅 Prices soaring: Extreme weather caused by climate change is driving up the cost of food worldwide and posing wider risks to society, a new study found. ⚖️ The Department of Justice reached out to which former associate of Jeffrey Epstein for a meeting?A. Prince AndrewB. Alan DershowitzC. Alexander AcostaD. Ghislaine Maxwell⬇️ Scroll down for the answer. 😴 Sleep aid: Are you tossing and turning every night? More physical activity can lead to better rest, but new research shows you don't have to run a marathon or visit a gym to reap those benefits. These three exercises can help. 👋 We'll see you tomorrow.🧠 Quiz answer: D. The DOJ said it reached out to Ghislaine Maxwell for a meeting amid backlash over the Trump administration's handling of files related to Epstein.📧 Check out all of CNN's newsletters. Today's edition of 5 Things PM was edited and produced by CNN's Kimberly Richardson, Sarah Hutter and Emily Scolnick.
CNN
22-07-2025
- Entertainment
- CNN
Earth spinning faster, AI companions, world's most powerful passports: Catch up on the day's stories
5 Things AIFacebookTweetLink Follow 👋 Welcome to 5 Things PM! The US is on the verge of dropping out of the top 10 ranking of the world's most powerful passports. Meanwhile, an Asian superpower continues to hold onto the No. 1 position. Here's what else you might have missed during your busy day. Earth is spinning faster this summer, making the days marginally shorter and attracting the attention of scientists and astronomers. Some days have clocked in at slightly less than the standard 24 hours, and timekeepers are considering an unprecedented move. President Donald Trump signed an executive order in January mandating that the documents be declassified and released. As a result, more than 240,000 pages related to the FBI's surveillance of the civil rights icon became public. This is what we know so far. Some celebrity deaths hit the Black community differently. That's the case with Malcolm-Jamal Warner, who died in a drowning accident in Costa Rica. His passing has been met with the type of deep grieving usually reserved for family members. The 'Great Dying' wiped out 90% of life on Earth, and then the planet became lethally hot for 5 million years. A recent fossil discovery warns why we should be worried about a new potential tipping point. Kids are asking artificial intelligence chatbots for advice and help solving their problems. A new study found that more than half of teens use them regularly — and that's a problem. get '5 things' in your inbox If your day doesn't start until you're up to speed on the latest headlines, then let us introduce you to your new favorite morning fix. Sign up here for the '5 Things' newsletter. 🎶 Birthplace of the blues: The musical roots run deep in Clarksdale, Mississippi. CNN anchor Laura Coates visits important landmarks, sits down for a delicious barbecue lunch and sees firsthand why the juke joints are special. US to withdraw from UN scientific and cultural agency UNESCO again Trump announces trade agreement with the Philippines and terms of deal with Indonesia Ozzy Osbourne, Black Sabbath singer and godfather of heavy metal, dies at 76 just weeks after farewell show That's how many Americans say the Israeli military's actions in Gaza are fully justified, according to a CNN poll. ⭐ Famous faces: There's no red carpet at the Studio City Farmers Market, but Hollywood A-list celebrities are as plentiful as the produce. 'The longer we fail to tackle climate change with the urgency it requires, the more such things will impact us all.' Tim Benton, a professor of population ecology 🍅 Prices soaring: Extreme weather caused by climate change is driving up the cost of food worldwide and posing wider risks to society, a new study found. ⚖️ The Department of Justice reached out to which former associate of Jeffrey Epstein for a meeting?A. Prince AndrewB. Alan DershowitzC. Alexander AcostaD. Ghislaine Maxwell⬇️ Scroll down for the answer. 😴 Sleep aid: Are you tossing and turning every night? More physical activity can lead to better rest, but new research shows you don't have to run a marathon or visit a gym to reap those benefits. These three exercises can help. 👋 We'll see you tomorrow.🧠 Quiz answer: D. The DOJ said it reached out to Ghislaine Maxwell for a meeting amid backlash over the Trump administration's handling of files related to Epstein.📧 Check out all of CNN's newsletters. Today's edition of 5 Things PM was edited and produced by CNN's Kimberly Richardson, Sarah Hutter and Emily Scolnick.
Yahoo
08-07-2025
- Science
- Yahoo
Climate tipping point might have been crossed before the ‘Great Dying'
If you purchase an independently reviewed product or service through a link on our website, BGR may receive an affiliate commission. One of the most notable extinction events in Earth's history has provided us with a new discovery. Recently discovered fossils from the time period known as the 'Great Dying' have revealed that the climate tipping point had likely already been crossed before the event began. The Great Dying, which is scientifically known as the Permian-Triassic Mass Extinction, took place roughly 252 million years ago. This event led to the extinction of most marine species, as well as significant declines in land-based plants and animals. While the event is usually attributed to extreme global warming caused by a period of volcanic activity, scientists have always been perplexed about why the intense greenhouse conditions continued for roughly five million years after the extinction event. Today's Top Deals XGIMI Prime Day deals feature the new MoGo 4 and up to 42% off smart projectors Best deals: Tech, laptops, TVs, and more sales Best Ring Video Doorbell deals According to the fossils discovered from the time period, scientists may have found their answer. Based on the findings, which the researchers have published in Nature Communications, the demise and slow recovery of tropical forests from the time period limited what we call carbon sequestration. This is the process where carbon dioxide is removed from the atmosphere and held in plants and the soil. It's vital to controlling the state of the climate across our planet. Without this process, carbon dioxide couldn't be removed as stably from the atmosphere, allowing it to continue building up. This resulted in prolonged periods where high levels of carbon dioxide existed in the atmosphere. As such, the researchers believe the climate tipping point had already been crossed before the volcanic activity that fostered the event actually began. This is the only high-temperature event in Earth's history that we know of where the important biosphere found in the tropical forest collapsed. That's why the researchers began going down this path of study in the first place. And after years of collecting data and looking at fossil records, the researchers finally have the data to back up the hypothesis. This belief also seems to back up the idea that there are various tipping points, or thresholds, that exist in the Earth's climate-carbon system. And when these tipping points are reached—similarly to how we have come close to them now—global warming can be amplified greatly. If the tipping point had been reached, then it could have helped spur along the volcanic activity to which researchers often attribute the event's beginning. What we do with this data, though, is up to the researchers. It could be vital to understanding the state of our own fight against climate change, as well as the possibility of whether or not we'll be able to stop ourselves from crossing the tipping point again. More Top Deals Memorial Day security camera deals: Reolink's unbeatable sale has prices from $29.98 See the
USA Today
04-07-2025
- Science
- USA Today
'The Great Dying' mass extinction was a warning from the trees, study says
As climate change threatens tropical forests, a new study shows how the loss of those forests can be devastating to life on Earth. It happened before, and could happen again…. That's the message in a new study about the catastrophic collapse of Earth's tropical forests due to natural volcanic causes 252 million years ago. The collapse of tropical forests was the primary cause of the prolonged global warming that followed, according to a new study published July 2 in the British journal Nature Communications. This coincided with a mass extinction, likely the worst in Earth's history. 'There is a warning here about the importance of Earth's present-day tropical forests," study co-author and University of Leeds professor Benjamin Mills said, in a statement: "If rapid warming causes them to collapse in a similar manner, then we should not expect our climate to cool to preindustrial levels, even if we stop emitting CO2. 'Indeed, warming could continue to accelerate in this case even if we reach zero human emissions. We will have fundamentally changed the carbon cycle in a way that can take geological timescales to recover, which has happened in Earth's past.' 'The Great Dying' The huge climate changes back then occurred during the Permian–Triassic Mass Extinction – sometimes referred to as the "Great Dying," which happened around 252 million years ago, leading to the massive loss of marine species and significant declines in terrestrial plants and animals. The event has been attributed to intense global warming triggered by a period of volcanic activity in Siberia, known as the Siberian Traps, the study says. This rapid increase in carbon dioxide in Earth's atmosphere and the resulting temperature increase is thought to be the primary kill mechanism for much of life at the time, according to the Conversation. However, scientists had been unable to pinpoint why super-greenhouse conditions persisted for around five million years afterwards. Now, in the new study, researchers have gathered data that supports the theory that the demise of tropical forests, and their slow recovery, limited carbon sequestration – a process where carbon dioxide is removed from the atmosphere and held in plants, soils or minerals. What caused Earth's tropical forests to collapse 252 million years ago? Our current understanding is that it was high temperatures which resulted from huge volcanic carbon dioxide emissions over thousands of years, Mills said in an e-mail to USA TODAY. "This volcanic event is called the Siberian Traps and may be the biggest to ever have occurred." Did the lack of tropical forests cause the climate to change? "Yes," Mills said, adding that the climate had already warmed, which initially caused the tropical forests to die back, but the removal of forests took away one of the planet's most important carbon removal processes – photosynthesis. The lack of this "carbon sink" caused CO2 levels to build up even further, which drove excess warming. Is this happening now? Could it happen again? "While the climate is currently warming (and is doing so faster than during the event 252 million years ago), we are not yet at the temperature where tropical forests are expected to reach a tipping point and transition into a carbon source rather than sink," Mills told USA TODAY. "So it is not happening now, but we may not be that far away." We have warmed the planet by about 1 degree C since the Industrial Revolution, and estimates for Amazon rainforest tipping points range from 2 to 6 degrees C. It is hard to estimate this accurately. How soon would the climate change after the tropical forests collapse? The Triassic super-greenhouse took thousands of years to establish, but because we are emitting carbon dioxide much more quickly than in the deep past, we might expect effects to begin to occur "over hundreds of years," Mills said. "To see 'super greenhouse' conditions we would need to remove almost all of the tropical forested area. It is debatable whether this could occur in the present day where the plants are different, and the shape of the continents is different than in the past. But personally I do not want us to run this experiment!" Speaking about the new study, co-author Jianxin Yu of the China University of Geosciences added: 'Let's make sure our work transcends academia: it is a responsibility to all life on Earth, today and beyond." "Earth's story is still being written, and we all have a role in shaping its next chapter," Yu said.
