Doyle Rice USA TODAY Published 5:32 p.m. UTC Jul 6, 2018 Collapsing polar ice caps, a green Sahara Desert, a 20-foot sea-level rise. That's the potential future of Earth, a new study suggests, noting that global warming could be twice as warm as current climate models predict. The rate of warming is also remarkable: “The changes we see today are much faster than anything encountered in Earth’s history. In terms of rate of change, we are in unchartered waters,” said study co-author Katrin Meissner of the University of New South Wales in Australia. This could mean the landmark Paris Climate Agreement – which seeks to limit global warming to 2 degrees Celsius (3.6 degrees Fahrenheit) above pre-industrial levels – may not be enough to ward off catastrophe. “Even with just 2 degrees of warming – and potentially just 1.5 degrees – significant impacts on the Earth system are profound,” said study … [Read more...] about Global warming could be far worse than predicted, new study suggests
Global warming potential
From the Middle East to Russia, and Ireland to the US, temperature records the world over have been toppled during a week of unprecedented heatwaves that some will take as evidence of global warming. Records have been set in Belfast and Castlederg in Northern Ireland, where the mercury hit 29.5C (85.1F) and 30.1C (86.2F) respectively on 28 and 29 June, and south of the border it reached 32C (89.6F) in Shannon on 28 June.The Met Office also recorded the hottest June ever for Wales, where temperatures reached 33C (91.4F) in the coastal town of Porthmadog as the month drew to a close.Meanwhile, there have been some unprecedented conditions some 5,000 miles away in Oman.Residents in the small fishing village of Quriyat, on the northeast coast, had to endure temperatures of 42.6C (108.7F) for 51 hours straight last week.The unprecedented spell made for the highest nighttime temperature ever recorded anywhere in the world.While no records have fallen in Iraq, it has been so hot in parts of … [Read more...] about Proof of global warming? Historical heat records broken across globe
Doyle Rice USA TODAY Published 6:20 p.m. UTC Jun 13, 2018 Global warming has caused over 3 trillion tons of ice to melt from Antarctica in the past quarter-century and tripled ice loss there in the past decade, a new study finds. The total is equivalent to over 4 quintrillion gallons of water added to the world's oceans, making Antarctica's melting ice sheets one of the largest contributors to rising sea levels. That amount of water is enough to fill over a billion swimming pools and cover Texas to a depth of nearly 13 feet. “Even though Antarctica is far from most human civilization, its ice sheet is losing mass to the ocean, and is an increasing contribution to sea-level rise," said study co-author Helen Amanda Fricker, a glaciologist at Scripps Institution of Oceanography. This "will have large impacts on coastlines all around all the world.” “The future we choose could determine when we need to rebuild airports, cities and infrastructure … [Read more...] about Global warming has melted over 3 trillion tons of ice in Antarctica since 1992, and it’s only getting worse
Early life flourished in a “greenhouse world” in which there were no polar ice sheets and sea temperatures around what is now Britain rose to 25C. The period in Earth’s history known as the “Cambrian explosion” around half a billion years ago saw a massive increase in the diversity of life. This period saw representatives from all major animal groups emerging for the first time throughout the world’s oceans. Read more First birds had beaks with teeth, prehistoric fossils show Notable among these were the chordates – a lineage that would ultimately give rise to vertebrates including humans. Scientists have long suspected this was a particularly warm period in Earth’s history, but until now it has been difficult to prove. “Because scientists cannot directly measure sea temperatures from half a billion years ago, they have to use proxy data – these are measurable quantities that respond in a predictable way to changing … [Read more...] about Global warming drove ‘explosion’ of life 500 million years ago that ultimately gave rise to humans
WHEN my husband is in charge of this country, he says, the first thing he’ll ban – apart from patio heaters, which are so environmentally unfriendly – will be men in shorts and flip-flops parading around outdoors in the middle of winter. He came home from a recent trip to Waitrose outraged at the sight of several of these offenders against common sense braving gale-force winds and driving rain. You remember, Storm Georgina, the day of the power cuts? “What’s going on with these people?” he asked indignantly. “You see the same thing any time you go into town these days. Global warming hasn’t happened to that extent yet!” I agreed that it’s incomprehensible. Pass by any construction site and you’ll see almost as many cases of bare knees as of builders’ bottom. How come they’re not freezing like the rest of us? And another thing. The computer he looked at in Waitrose was £100 dearer than the same … [Read more...] about Global warming hasn’t happened to that extent yet!