Readers who are keen to further their knowledge about AGW and climate change might have come across the name Katharine Hayhoe.
Hayhoe is an atmospheric scientist and director of the Climate Science Center at Texas Tech University. She has contributed to more than 125 scientific papers and won numerous prizes for her science communication work. In 2018 she was a contributor to the US National Climate Assessment and was awarded the Stephen H Schneider award for outstanding climate science communication. Among many other publications she was one of the lead authors of the major US climate report issued late in 2018.
writing in the Washington Post on Nov. 30, Hayhoe said “The Fourth National Climate Assessment — the work of 13 federal agencies and more than 350 scientists, including me — is clear: The Earth is warming faster than at any time in human history, and we’re the ones causing it. Climate change is already affecting people, and the more carbon we produce, the more dangerous the effects over the coming century. Nevertheless, many people continue to believe and propagate some misleading myths.”
Hayhoe deals here with one more of the five myths she hears most frequently.
It’s fair to say these myths are repeated ad nauseum on HC by the climate change denying noisemakers who have made HC climate threads their home to perpetrate their scam.
“MYTH NO. 2, by Hayhoe.
the climate has changed before. It's just a natural cycle.
“Last fall, when the first volume of the National Climate Assessment was released, White House spokesman Raj Shah responded that “the climate has changed and is always changing.” President Trump himself has embraced this position, claiming that the climate “will change back again.” This line is a popular one with people who dismiss climate change by maintaining that we’ve had ice ages before, as well as warm periods, and so the warming we’re seeing now is just what the Earth has always done.”
”But we can look at the natural factors that affect the climate. First, over the past few decades, energy from the sun has been going down , not up, so if changes in the sun’s energy drove our temperature, we should be getting cooler, not warmer.
“Others argue that we’re getting warmer because we’re recovering from the last ice age. But ice ages — and the warm periods in between — are caused by the Earth’s orbital cycles, and according to those cycles, the next event on our geologic calendar is another ice age, not more warming.
”We can also rule out volcanoes, which do produce heat-trapping gases, but less than 1 percent of the CO2 that humans produce. And big eruptions, when they happen, cool the Earth instead of warming it. In other words, the climate change we’re experiencing now definitely isn’t natural.”
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