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New Study by Scientists at La Brea Tar Pits Finds Extinction of Ice Age Mammals Linked to Climate Change, Humans, and Fire

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LOS ANGELES, Aug. 17, 2023 /PRNewswire/ — Large-scale wildfires in an ecosystem made fire-prone by climate change caused the disappearance of saber-toothed cats, dire wolves, and other large mammals in southern California nearly 13,000 years ago, according to a new study by researchers at La Brea Tar Pits.

Published in the journal Science, the peer-reviewed study breaks new ground in a decades-long scientific debate over what triggered the Earth’s last major extinction. Supported by the precise dating of fossils preserved at La Brea Tar Pits, the research advances our understanding of the dynamics between dramatic environmental change, human population growth, wildfire activity, and the abrupt disappearance of Ice Age megafauna. 

“The significance of this research will resonate for decades well beyond the scientific field,” said Dr. Lori Bettison-Varga, President and Director of the Natural History Museums of Los Angeles County. “La Brea Tar Pits is the only place on Earth that has the fossil record necessary to examine the last significant climate change event in this way. The site’s collection of millions of Ice Age fossils provides a unique opportunity to study environmental change. 

The study laid out a disastrous chain of ecological events reconstructed from climate, vegetation, and fire records preserved in the sediments of nearby Lake Elsinore. It started with the gradual warming and drying of the landscape and a simultaneous decline in forest-adapted large herbivores over 2,000 years, as Earth emerged from the last Ice Age and glaciers receded. Then, just as human populations began to sharply increase in North America, the ecosystem underwent a dramatic change: temperatures rose rapidly, a 200-year-long drought parched the landscape, and massive wildfires transformed plant communities. Within 300 years, all the Ice Age giants at La Brea were gone, and California’s modern, fire-adapted chaparral ecosystem had appeared. 

Understanding the relationship between environmental change and human activity is equally important to current-day challenges, the study said. It noted that temperatures in Southern California have risen faster in the last century than they did during the late Pleistocene. Land area burned by wildfire in the western U.S. has increased four-fold in the past 20 years, and this pattern is only predicted to worsen in coming years.

Full press kit 

Media Contact:
Maura Klosterman-Vu
310-552-4117
[email protected]

View original content:https://www.prnewswire.co.uk/news-releases/new-study-by-scientists-at-la-brea-tar-pits-finds-extinction-of-ice-age-mammals-linked-to-climate-change-humans-and-fire-301902916.html

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FBI warning against crypto money transmitters ‘appears’ to be aimed at mixers

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A recent warning from the FBI regarding a crypto money transmitter seems to be aimed at the Samourai Wallet. This development highlights the increasing scrutiny and regulatory challenges faced by privacy-focused cryptocurrency wallets and services.

The FBI warning raises concerns about the use of certain cryptocurrency wallets that prioritize user privacy and anonymity, potentially enabling illicit activities such as money laundering and terrorist financing. While the warning does not explicitly name any specific wallet or service, the language used suggests that the Samourai Wallet may be the target of the advisory.

Samourai Wallet is known for its focus on privacy and security features, including coin mixing and stealth addresses, which aim to enhance user privacy and protect against surveillance and tracking. However, these features have drawn the attention of law enforcement agencies and regulators, who are increasingly concerned about their potential misuse by criminals.

The FBI warning underscores the challenges faced by privacy-focused cryptocurrency wallets in navigating regulatory compliance and law enforcement scrutiny. While these wallets aim to empower users with greater control over their financial privacy, they must also address regulatory requirements and law enforcement concerns to avoid legal and reputational risks.

As the cryptocurrency industry continues to evolve, privacy-focused wallets like Samourai Wallet will need to strike a balance between privacy and compliance, ensuring that they can provide robust privacy features while also addressing regulatory concerns and maintaining transparency with authorities. This delicate balance is essential to foster trust and confidence among users and regulators alike, ultimately enabling the continued growth and adoption of privacy-enhancing technologies in the cryptocurrency space.

Source: cointelegraph.com

The post FBI warning against crypto money transmitters ‘appears’ to be aimed at mixers appeared first on HIPTHER Alerts.

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Pantera Capital Plans to Raise $1 Billion for New Fund Offering Exposure to Crypto Assets

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Pantera Capital is reportedly planning to raise $1 billion for a new fund that offers exposure to various crypto assets, as reported by Blockchain.News. This ambitious fundraising initiative underscores Pantera’s continued confidence in the potential of the cryptocurrency market and its commitment to providing investors with diversified investment opportunities in the digital asset space.

The new fund from Pantera Capital aims to capitalize on the growing demand for exposure to cryptocurrencies and blockchain-based assets among institutional and retail investors. By offering a comprehensive portfolio of crypto assets, the fund seeks to provide investors with access to a wide range of investment opportunities, spanning cryptocurrencies, tokens, and other digital assets.

Pantera’s decision to raise $1 billion for the new fund reflects its optimistic outlook on the long-term growth prospects of the cryptocurrency market. With increasing mainstream adoption and institutional interest in cryptocurrencies, Pantera sees significant potential for value creation and capital appreciation in the digital asset space.

As one of the leading blockchain-focused investment firms, Pantera Capital is well-positioned to attract capital from investors seeking exposure to the cryptocurrency market. The firm’s track record of successful investments and its experienced team of investment professionals are likely to bolster investor confidence and support for the new fund.

Pantera Capital’s plans to raise $1 billion for its new fund underscore its commitment to driving innovation and growth in the cryptocurrency market. As the fund attracts capital and deploys it into promising investment opportunities, it is poised to play a key role in shaping the future of the digital asset ecosystem.

Source: blockchain.news

The post Pantera Capital Plans to Raise $1 Billion for New Fund Offering Exposure to Crypto Assets appeared first on HIPTHER Alerts.

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Existing Blockchains Can’t Adopt Post-Quantum Cryptography Without Significant User Impact, Says Johann Polecsak

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Johann Polecsak argues that existing blockchains face significant challenges in adopting post-quantum cryptography without causing substantial disruption to users. This assessment highlights the complex and multifaceted nature of transitioning to new cryptographic standards in blockchain networks.

Post-quantum cryptography refers to cryptographic algorithms that are resistant to attacks from quantum computers, which have the potential to break traditional cryptographic schemes. While post-quantum cryptography offers enhanced security, implementing it in existing blockchain networks poses technical, operational, and usability challenges.

Polecsak suggests that transitioning to post-quantum cryptography could require significant changes to blockchain protocols, consensus mechanisms, and user interfaces. These changes may disrupt existing workflows, require modifications to software and hardware infrastructure, and necessitate coordination among network participants.

Furthermore, Polecsak emphasizes the importance of ensuring backward compatibility and interoperability during the transition to post-quantum cryptography. This is crucial to prevent fragmentation of the blockchain ecosystem and maintain continuity for users and applications.

Polecsak’s assessment underscores the complexities and trade-offs involved in adopting post-quantum cryptography in existing blockchain networks. While the transition promises improved security against quantum threats, it requires careful planning, coordination, and investment to minimize disruption and ensure a smooth transition for users and stakeholders. As the field of post-quantum cryptography continues to evolve, blockchain projects will need to carefully evaluate their options and strategies for implementing these new cryptographic standards.

Source: news.bitcoin.com

The post Existing Blockchains Can’t Adopt Post-Quantum Cryptography Without Significant User Impact, Says Johann Polecsak appeared first on HIPTHER Alerts.

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