Gulf Stream at its weakest in over 1,000 years

A new study suggests that the Gulf Stream – an Atlantic Ocean current that plays a large role in shaping Earth’s weather patterns – is weaker now than at any point in the last 1,000 years. Source: https://earthsky.org/earth/gulf-stream-atlantic-weakest-in-over-1000-years…

2020 tied for warmest year on record

2020 was Earth’s hottest year in the 140-year record, effectively tying 2016, the previous record-holder. Source: https://earthsky.org/earth/2020-tied-for-warmest-global-year-on-record…

SpaceX Begins a Day With Two Falcon 9 Launches, Seventh Flight of a Recycled Rocket

While tonight will see SpaceX’s 16th launch of its broadband satellites, that launch will also make history, reports CNET: The first stage of the Falcon 9 rocket is set to make its seventh flight, which would be a record for rocket recycling for the company. The booster previously flew on four Starlink missions and a pair of larger telecom satellite launches….

US Formally Withdraws From Paris Climate Agreement

An anonymous reader quotes a report from The Intercept: The United States officially withdrew from the Paris Agreement on Wednesday, casting the stakes of the still-undecided presidential election in planetary terms. With the completion of the formal withdrawal process, which Trump began in June 2017, the U.S. became the only country in the world not to participate in the global effort…

Worsening rifts, fractures spotted at 2 important Antarctic glaciers

Satellite imagery has revealed that 2 of the fastest-changing glaciers in Antarctica are fracturing and weakening faster than ever, a step towards the glaciers disintegrating and causing sea levels to rise dramatically. Source: https://earthsky.org/earth/worsening-rifts-fractures-2-important-antarctic-glaciers…

What is a hurricane storm surge?

Of all the hazards that hurricanes bring, storm surge is the greatest threat to life and property along the coast. Source: https://earthsky.org/earth/definition-what-is-a-hurricane-storm-surge…

Earth’s glaciers and ice sheets are melting

Several new studies released in recent weeks paint a dire picture of the ongoing melting of Earth’s freshwater ice sheets and glaciers, 99% of which are found in Greenland and Antarctica. Source: https://earthsky.org/earth/ice-sheets-glaciers-tearing-loose-worst-case-vulnerable…

Meltwater may fracture Antarctic ice shelves and speed sea level rise

Most of the ice shelves buttressing Antarctica’s ice sheets risk fracturing as meltwater trickles into cracks on their surface, which could accelerate sea level rise Source: https://www.newscientist.com/article/2252946-meltwater-may-fracture-antarctic-ice-shelves-and-speed-sea-level-rise/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…

Greenland Lost 586 Billion Tons of Ice In 2019

An anonymous reader quotes a report from The Associated Press: Greenland lost a record amount of ice during an extra warm 2019, with the melt massive enough to cover California in more than four feet (1.25 meters) of water, a new study said. After two years when summer ice melt had been minimal, last summer shattered all records with 586 billion…