7/7/2023 0 Comments Fman changes nametagsDavid Keeling with the Scripps Institution of Oceanography begins direct measurements of carbon dioxide in the atmosphere at the Mauna Loa Observatory in Hawaii. The era from the 1950s to the 1970s ushers in more scientific progress and data collection.ġ958 – Scientist C. Climate change conversation continues as research advances The piece was based on a Popular Mechanics magazine article published earlier that year that mentioned the work of Arrhenius. geologist Thomas Chamberlin at the University of Chicago, who studied glaciers in the Arctic, also writes about carbon dioxide’s role in regulating the Earth’s temperature.ġ912 – A New Zealand newspaper warns burning coal could eventually change the climate. Arrhenius connected the dots in his later work. Read on to explore more about the roots of climate change research and the information scientists have learned and when: Concerns about coal burning crop up earlyġ300s – King Edward of England bans coal burning, blaming it for thick, black smoke choking the air in London.ġ700s – Coal-powered factories begin appearing in Great Britain as the first Industrial Revolution begins in Europe.ġ861 – Irish physicist John Tyndall writes that water vapor and gasses such as carbon dioxide create the Earth’s greenhouse effect, trapping the Sun’s heat and keeping the planet warm.ġ896 – Swedish scientist Svante Arrhenius publishes a study that shows he “knows that increasing carbon dioxide in the atmosphere will raise temperatures, and acknowledges that burning fossil fuels are a source of carbon dioxide, but stops just short of explicitly predicting man-made global warming,” said Robert Rohde, lead scientist for Berkeley Earth. “Any politician today that denies the reality of climate change is either grossly ignorant of more than a century of science or is deliberately misleading the public for political reasons,” Gleick said. What we knew and when about climate changeįor more than 150 years, scientists have built on the work of others before them to identify the role of carbon dioxide emissions in warming the Earth. It stated: “Climate change is a national security challenge with strategic implications for the Navy.” The Navy issued its “Climate Change Road Map” in 2010, the year DeSantis left active duty. The Navy conducted a two-day symposium in 2001 to evaluate potential operations needed in an ice-diminished Arctic.By 2001, Navy submarines had documented a “striking” thinning of new Arctic Ocean ice.“We are all aware of possible threats posed by global climate change,” retired Navy Admiral James Watkins told members of Congress in February 1989, after being nominated by President George H.W.Navy officials talked about the impacts of climate change more than 15 years before DeSantis joined the Navy in 2004. military’s climate change research for more than 30 years. “DeSantis is wrong,” says Peter Gleick, a co-founder and senior fellow at the Pacific Institute, who has studied the U.S. “ You talk about things like global warming that they’re somehow concerned about, and that’s not the military I served in.”īut the military, including the Navy, has been worried about climate change for decades. In one of the latest examples, presidential contender Ron DeSantis, governor of one of the states most vulnerable to climate change, brought up warming during a May 24 FOX News interview with Trey Gowdy. Some people continue to wrongly characterize climate change as a new fadĭespite the long history of scientific and military documents that chronicle warming temperatures, rising sea levels and more extreme weather around the world, people often repeat misconceptions and share inaccurate information. 2 degrees Celsius every decade since the 1970s. Scientists had already figured out by the late 1800s that a greenhouse effect works to keep the planet warm, and that the carbon dioxide produced by burning coal could enhance that effect. By the 1970s, researchers were measuring those emissions in the atmosphere and warning Earth’s temperature could warm between 0.5 and 5 degrees Celsius by the mid-21st century.įifty years later, the vast majority of scientists agreed the global average temperature was already one degree Celsius higher than it had been in the late 1800s and had been rising at a rate of. But a host of government documents and reports by researchers and historians lay a clear trail of what scientists and government officials knew and when. Political misinformation continues to swirl around the climate change discussion like a thick fog rolling in off the rising ocean.
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