Had you simply stopped showering every day and voted Democrat we could have stopped this
Scientists See Growing Risk of ‘Hothouse Earth’ as Warming Gains Pace
Warming is accelerating, threatening a cascade of tipping points that destabilize the climate. In a new paper, scientists say the risk of “hothouse Earth” is greater than once believed.
“After a million years of oscillating between ice ages separated by warmer periods, the Earth’s climate stabilized more than 11,000 years ago, enabling agriculture and complex societies,” said William Ripple of Oregon State University, lead author of the paper. “We’re now moving away from that stability and could be entering a period of unprecedented climate change.”
First, there is no such thing as truly stable. Over the past 8K years we’ve had numerous warm and cool periods, and, since we do not have full world wide data we cannot make an accurate, scientific comparison to previous warm periods. Further, if they have to describe warming as ‘climate change’, all measure of science has been run over by a steamroller.
A decade ago, countries set forth in the Paris Agreement a target of capping warming at 1.5 degrees Celsius. Earth is now likely breaching that threshold. The world has not officially surpassed the Paris target, which will be judged according to the average temperature over 20 years, but the average temperature over the last three years exceeded 1.5 degrees.
“Likely breaching” but not officially surpassed. Uh huh.
Scientists say that the Earth is likely as hot or hotter than at any point in the last 125,000 years, while carbon dioxide levels are at their highest in at least 2 million years. And warming is gaining pace as the ability of the planet to soak up our emissions weakens. Forests that were once carbon sinks are becoming carbon sources as they succumb to fire and drought, while the oceans are losing the capacity to absorb carbon dioxide.
“Likely” is not a scientific measure. They also do realize that life on Earth survived much warmer periods, right? And that the oceans were much warmer and much higher (that’s how you get coral islands), right? Well, no. Not in Cult World.
Scientists warn that the crossing of one tipping point can push the Earth past another, in a domino effect. The melting of the Greenland ice sheet, for instance, could weaken Atlantic currents, disrupting rainfall over the Amazon. A cascade of tipping points could bring about “hothouse Earth,” said coauthor Johan Rockström, director of the Potsdam Institute for Climate Impact Research in Germany. “Our paper shows that we’re not there yet — but we’re very close.”
They’ve been saying the same thing for at least 20+ years and will be saying the same thing for at least 20 more. Could they tell us when hothouse Earth is supposed to appear?
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Perfesser William typed: “Likely” is not a scientific measure.
It most certainly is. Science is not about certainty but probabilities. The concept of global warming can be refuted with new data.
It’s likely that the Earth is warmer now than at any time in the Holocene. CO2 is likely the highest in a million years. It’s not a coin toss or 50/50.
Both the temperature and CO2 levels prior to a hundred or so years ago are derived by proxies. For example, air bubbles in ice for CO2.
CO2 levels from 100,000 years ago are primarily estimated by drilling deep ice cores in Antarctica and Greenland. Scientists crush these ice cores, which contain trapped air bubbles from ancient snowfall, and analyze them to measure the concentration of in that prehistoric air.
Temperature records are estimated using various proxies…
Ice Cores: Drilled from glaciers, these contain trapped air bubbles and oxygen isotopes that provide data on atmospheric composition and temperature over hundreds of thousands of years.
Tree Rings: Wide rings indicate warmer, wetter years, while narrow rings indicate colder, drier ones, offering yearly records of climate.
Ocean/Lake Sediments: Layers of sediment contain fossils of microorganisms (like foraminifera) whose chemical composition, particularly oxygen isotope ratios, correlates with historical water temperatures.
Coral Reefs: Coral grow in layers, similar to trees, allowing scientists to analyze isotope ratios to reconstruct detailed, year-by-year (or sometimes seasonal) ocean temperature records.
Pollen/Fossils: Preserved in lake beds or bogs, pollen indicates the type of vegetation that grew in a region, which is dependent on temperature and climate.
Speleothems (Cave Deposits): Stalactites and stalagmites grow slowly and hold chemical signatures of past temperature and rainfall.
Climate skeptics claim that thousands of climate scientists are either badly mistaken or dishonest.