The dodo bird isn’t coming back anytime soon. Nor is the woolly mammoth. But a company working on technologies to bring back extinct species has attracted more investors, while other scientists are skeptical such feats are possible or a good idea.  Colossal Biosciences first announced its ambitious plan to revive the woolly mammoth two years ago, and on Tuesday said it wanted to bring back the dodo bird, too.  “The dodo is a symbol of man-made extinction,” said Ben Lamm, a serial entrepreneur and co-founder and CEO of Colossal. The …

The world will likely breach the internationally agreed-upon climate change threshold in about a decade and keep heating to break through a next warming limit around mid-century, even with big pollution cuts, artificial intelligence predicts in a new study that’s more pessimistic than previous modeling. The study in Monday’s journal Proceedings of the National Academy of Sciences reignites a debate on whether it’s still possible to limit global warming to 1.5 degrees Celsius, as called for in the 2015 Paris climate agreement, to minimize the most damaging effects of climate …

In the 1980s, more than 3 million people worldwide were infected with Guinea worm. At the end of 2022, the number of reported cases globally was down to 13. There were 15 cases reported a year earlier, “which does not sound like a big reduction, but when you are dealing with very small numbers in very remote areas we take it as a huge step forward,” said Adam Weiss, director of the Carter Center’s Guinea Worm Eradication Program. Guinea worm, a parasite usually ingested through contaminated water, grows inside the …

World Health Organization Director General Tedros Adhanom Ghebreyesus warns global health challenges are growing and threatening the well-being of millions of people worldwide. He spoke at the opening of WHO’s week-long executive board meeting.  The WHO chief began his presentation on a somber note. He told meeting participants that an emergency committee convened to assess the status of the pandemic has concluded that COVID-19 remains a global health emergency.  He said the situation is much better now than a year ago when the omicron variant of the coronavirus was at …

The International Federation of Red Cross and Red Crescent Societies warns the world is dangerously unprepared for the next pandemic and this will have severe health, economic and social consequences for countries around the world.  The IFRC has just released this year’s World Disaster Report. In a marked departure from previous reports, the IFRC does not delve into the numerous natural disasters that caused untold devastation last year.  It does not rank the severity of disasters such as earthquakes, floods, and drought in terms of deaths and the destruction of …

Ahead of World Neglected Tropical Diseases Day Monday, the World Health Organization is calling for action to tackle these debilitating illnesses, which affect an estimated 1.65 billion people globally.  A diverse group of 20 parasitic and bacterial tropical diseases is categorized as neglected. This is because they disproportionally affect people who live in poor, remote communities and are not on the list of global health priorities. Ibrahima Soce Fall is director of WHO’s Department of Neglected Tropical Diseases. He says these vector-borne diseases are transmitted by insects in areas that …

The discovery of an asteroid the size of a small shipping truck mere days before it passed Earth on Thursday, albeit one that posed no threat to humans, highlights a blind spot in our ability to predict those that could actually cause damage, astronomers say. NASA for years has prioritized detecting asteroids much bigger and more existentially threatening than 2023 BU, the small space rock that streaked by 2,200 miles from the Earth’s surface, closer than some satellites. If bound for Earth, it would have been pulverized in the atmosphere, …

Heavy rainfall hit New Zealand’s north island again on Sunday, causing landslides, flash floods and knocking out roads, with the death toll rising to four after a person who had been missing was confirmed dead. Battered by rain since Friday, Auckland — New Zealand’s largest city of 1.6 million people — remained under a state of emergency. The nation’s weather forecaster, MetService, warned of severe weather on Sunday and Monday for the north island. Intense rainfall could also cause surface and flash flooding, it said. The focus of the emergency …

The U.N.’s main AIDS program says thousands of children are dying from HIV/AIDS because, unlike adults, they do not receive treatment for the deadly disease. HIV/AIDS is no longer an automatic death sentence. People infected with the disease can live a normal lifespan, provided they receive treatment and care. Unfortunately, there is a glaring disparity between the way children and adults with HIV/AIDS are treated. UNAIDS spokeswoman Charlotte Sector says 76 percent of adults have access to treatment but only half of children living with HIV are receiving lifesaving treatment. …

This week India launched its first nasal COVID-19 vaccine, four months after it received approval for its restricted emergency use among adults in the country. The mucosal vaccine, made by India’s leading vaccine maker, Bharat Biotech, is based on technology licensed from Washington University School of Medicine in St. Louis, in the U.S. It is administered in the form of drops in the nose and stimulates an immune response in the mucous membranes of the tissues lining the nasal cavity, upper airways and lungs. Originally called BBV154 and now sold …

A comet is streaking back our way after 50,000 years.  The dirty snowball last visited during Neanderthal times, according to NASA. It will come within 42 million kilometers (26 million miles) of Earth on Wednesday before speeding away again, unlikely to return for millions of years.  Discovered less than a year ago, this harmless green comet already is visible in the northern night sky with binoculars and small telescopes, and possibly the naked eye in the darkest corners of the Northern Hemisphere. It’s expected to brighten as it draws closer …

Dozens of indigenous children suffering from malnutrition and acute diseases have been hospitalized in northern Brazil, with relatives in hammocks holding their emaciated frames in scenes that underscore the gravity of a public health crisis. The health secretary of Boa Vista, the capital of Roraima state, said on Friday that 59 indigenous children were currently at the only pediatric hospital in the state, 45 of them from the Yanomami people. Eight were under intensive care. The secretary said children are suffering from acute diarrhea, gastroenterocolitis, malnutrition, pneumonia and malaria. Brazil’s …

The U.S. Food and Drug Administration on Friday proposed revisions to its guidelines to make it easier for gay and bisexual men to donate blood, eliminating a three-month abstinence period before donations. The restrictions were implemented years ago to prevent the spread of HIV, the virus that causes AIDS. In a release posted to the agency’s website, the FDA said under the draft proposals, all donors — regardless of sexual orientation — would be given a questionnaire regarding new partners, sexual history, and certain types of sexual activities. Any prospective …

The Omicron subvariant XBB.1.5 has likely become the dominant variant in the United States, accounting for 61.3% of COVID cases in the week ended January 28, data from the U.S. Centers for Disease Control and Prevention showed on Friday. The subvariant accounted for 49.5% of cases in the week ended January 21, according to estimates from the CDC. XBB.1.5, which is currently the most transmissible variant, is an offshoot of XBB, first detected in October. The now-dominant XBB-related subvariants are derived from the BA.2 version of Omicron. An analysis from …

The Biden administration moved Thursday to protect northeastern Minnesota’s pristine Boundary Waters Canoe Area Wilderness from future mining, dealing a potentially fatal blow to a copper-nickel project. Interior Secretary Deb Haaland signed an order closing more than 900 square kilometers of the Superior National Forest in the Rainy River Watershed around the town of Ely, to mineral and geothermal leasing for 20 years, the longest period the department can sequester the land without congressional approval. The order is “subject to existing valid rights,” but the Biden administration contends that Twin …