Hurricane Eugene attained Category 3 force in the Pacific off Mexico. • Tropical Storm Fernanda became a hurricane as it moved westward between Mexico and Hawaii.
New research suggests the maximum human lifespan could far exceed the 115-year limit cited in a previous study, after decades of increasing longevity.
Geneticist Jan Vijg of New York’s Albert Einstein College of Medicine authored a controversial report last year that says humans have reached our maximum allotted lifespan for the first time.
But other researchers quickly argued that Vijg’s findings were skewed by flawed calculations.
Siegfried Hekimi from Montreal’s McGill University argues that under more optimistic interpretations of longevity data, the oldest person alive in 2300 would be about 150 years old.
Scientists say Earth’s “sixth mass extinction” has been underway over the past century in a “biological annihilation” that has seen billions of regional or local populations lost.
Gerardo Ceballos of the National Autonomous University of Mexico, who led a study, said: “The situation has become so bad it would not be ethical not to use strong language.”
He found habitat destruction, overhunting, pollution, invasive species and climate change had caused half of the 177 mammal species surveyed to lose more than 80 percent of their distribution between 1900 and 2015.
The world must speed up the reduction of greenhouse gas emissions within three years to cap global warming beneath the 2 degrees Celsius limit agreed to in the Paris climate accord, according to a commentary in the journal Nature.
Former U.N. climate chief Christiana Figueres, three top climate scientists and two experts from business signed the letter just before the G-20 summit.
The article suggests no new coal power plants be approved after 2020, along with renewable energy sources being increased to provide at least 30 percent of the world’s electricity demand. The burning of fossil fuels also should begin a steep decline, the authors suggest.
Bogoslof volcano spewed ash high into trans-Pacific air routes above the Aleutian Islands during the latest in a series of eruptions that began last December.
The alert level for aviation was raised to red as the ash plume reached about 30,000 feet high.
Unprecedented Arctic warmth this year virtually ensures the summer will bring the greatest melt of the Arctic’s sea ice on record.
Melting as of July 2 had equaled that seen in 2012, which had the lowest sea ice coverage ever observed.
But when scientists factor in the thickness of the remaining summer ice coverage this month, ice volume is at a record-low level, according to researchers from the University of Washington.
A new study finds that Arctic winter warming events have become more frequent and are lasting longer than they did three decades ago.
The central Philippines island of Leyte was jolted for the second time within a week by a powerful temblor.
• Earth movements were also felt in far southern New Zealand, southern Japan, northern Pakistan, south-central Alaska and eastern Georgia.
Ash soared to a height of approximately 30,000 feet above the Aleutians during Bogoslof’s eruption.