Scientists confirm dramatic melting of Greenland ice sheet:
Now experts have examined the level of melting in more detail, revealing what drove it. Crucially, the team note, the high pressure conditions lasted for 63 of the 92 summer days in 2019, compared with an average of just 28 days between 1981 and 2010. A similar situation was seen in 2012, a record bad year for melting of the ice sheet.
The team say the climate models of the Intergovernmental Panel on Climate Change (IPCC) have not taken into account such unusual conditions. If such high pressure zones become a regular annual feature, future melting could be twice as high as currently predicted, a result that could have serious consequences for sea level rise.
Climate crisis cutting short Australia’s winters and extending summers:
“If it feels like Australian summers are getting longer and hotter, that is probably because they are,” the report said. “The summers many Australians grew up with no longer exist.”
Over the past two decades, summer was on average a month longer than it was in the mid-20th century. The report said temperatures that “marked the start of summer now come around two weeks earlier”, and “temperatures that marked the end of summer now come around two weeks later”.
JP Morgan economists warn climate crisis is threat to human race:
The research by JP Morgan economists David Mackie and Jessica Murray says the climate crisis will impact the world economy, human health, water stress, migration and the survival of other species on Earth.
“We cannot rule out catastrophic outcomes where human life as we know it is threatened,” notes the paper, which is dated 14 January.