Climate & Climate Change

In yesterday’s The Australian science writer Leigh Dayton claims that the northern hemisphere is hotter now than at any time in the past 1500 years. The article qualified her comment with this is “according” to the most comprehensive reconstruction … [Read more...] about Second Attempt to Deny the Medieval Warm Period: New Paper by Michael Mann

Studies of Pleistocene glacial-interglacial cycles based on sediments and ice cores back to 640 000 years (640 kyr) document abrupt initiation of global warming and cooling events over short time scales of decades to a few years, implying extreme … [Read more...] about The Earth’s Climate is Tracking into Uncharted Territory: A Note from Andrew Glikson

In 1610 Galileo observed dark features on the face of the sun – sunspots. In the preface to a little book Galileo wrote on sunspots that was published in 1613, he was credited with having discovered sunspots but an Englishman, Thomas Harriott, and … [Read more...] about August 2008: The first Sunspot-less Month since June 1913

According to a recent paper** published in the journal Nature, only a dramatic fall in atmospheric carbon dioxide levels are able to explain the transition from the mostly ice-free Greenland of three million years ago, to the ice-covered Greenland of … [Read more...] about Greenland’s Ice Follows Dramatic Fall in Carbon Dioxide Levels?

In today's UK Telegraph Christopher Booker has commented: "As the estimated cost of measures proposed by politicians to 'combat global warming' soars ever higher – such as the International Energy Council's $45 trillion – 'fighting climate change' … [Read more...] about Time for a Counter-Consensus: Christopher Booker