Scientists surveying the bottom of the Gulf of Mexico discovered a “dead-zone” – where low oxygen levels make the area inhospitable to fish – “equivalent to more than four million acres of habitat.”
The National Oceanographic and Atmospheric Administration (NOAA) released the survey’s findings this week, which were uncovered by scientists aboard a research cruise. Typically, dead zones cover around 5,400 square miles. But the hypoxic zone near the Gulf this year measured around 6,334 square miles.
“This year, we have seen again and again the profound effect that climate change has on our communities – from historic drought in the west to flooding events. Climate is directly linked to water, including the flow of nutrient pollution into the Gulf of Mexico,” Environmental Protection Agency Assistant Administrator for Water Radhika Fox said in the release.
“As we work to address the Gulf of Mexico hypoxic zone, we must consider climate change and we must strengthen our collaboration and partnerships to make needed progress,” Fox added.
Source: Scientists make shocking discovery of ‘dead zones’ where nothing can live on two US coasts | TheHill
It’s the fourth straight Olympic gold medal for the United States and third for Durant, who became the highest scoring American player in Olympic history in Tokyo.
Source: Kevin Durant leads U.S. to gold in men’s basketball at Tokyo Olympics – National | Globalnews.ca
“Significant early-warning signals are found in eight independent AMOC indices, based on observational sea-surface temperature and salinity data from across the Atlantic Ocean basin,” researchers wrote in the study’s abstract. “The AMOC may have evolved from relatively stable conditions to a point close to a critical transition,” they concluded. A collapse of the system would substantially cool Europe and have a strong impact on the tropical monsoon systems.
Source: Gulf Stream system threatens collapse, study finds | News | DW | 06.08.2021
The Delta variant manages to partially escape the antibodies, destroying the effectiveness of the first dose of the vaccines. But the level of antibody produced during the second dose is sufficient to neutralize it. Source: Covid-19 and Delta: Two doses of vaccines are effective – Sciences and Avenir
People infected with COVID-19 earlier in the pandemic, but who opt to not get vaccinated against the virus, are more than twice as likely to get sickened again compared with those who receive the shot, based on CDC.
Source: CDC: Reinfection more likely for unvaccinated who had COVID-19 than for vaccinated – UPI.com
A new paper has reported fresh sightings of wild tigers in higher elevations in Nepal, showing that conservation efforts need to be stepped up outside their traditional habitat inside national parks.
There have been multiple sightings of at least two tigers in the mountains of Rupandehi, Kapilvastu and Palpa, three districts in central Nepal that have never before seen the presence of the endangered big cats.
“We have camera-trapped tigers in forests north and west of Butwal where they have never been seen before. They have been seen in the Chure Hills, outside of protected areas in the Terai region,” says Baburam Lamichhane of the Sauraha Biodiversity Conservation Centre.
Source: Tigers move up the Himalaya · Global Voices