Either the entire world is set to experience dramatic additional warming once we stabilise at the current (400+ ppm) CO2 concentration – or we are still dramatically underestimating the local climate sensitivity of the Arctic – a region that might … Continue reading →
Sediment deposits along shores of Antarctica, New Zealand and Chile suggest over 2 million years ago something big must have plunged somewhere in the middle of that triangle, creating a mega tsunami with hundreds of meters high waves engulfing coastal … Continue reading →
Beluga whales and narwhals live solely in the cold waters of the Arctic and sub-arctic. Smithsonian scientists, however, found that this may not have always been the case. They recently described a new species of toothed whale and close relative to today’s belugas and narwhals that lived some 3-4 million years ago during the Pliocene in warm water regions.
Beluga whale, narwhal and Pliocene relative Bohaskaia monodontoides shown in artist impression by Carl Buell
That would likely mean that also the official UN climate goal of limiting the average world temperature rise to no more than 2 degrees Celsius – a target linked to 450 ppm CO2 equivalent stabilisation scenarios (practically ambitious, theoretically weak) … Continue reading →