'Imposing ignorance': US climate science under siege

A benchmark U.S. report on the fast-changing state of the Arctic has been canceled. The nation's top research body has removed a chapter on global warming from a reference manual for judges.

The top 3

  1. Greenhouse Effect Identified by Fourier and Tyndall: In 1824, Joseph Fourier proposed that Earth's atmosphere traps heat, preventing it from being much colder. Later, in 1859, John Tyndall experimentally demonstrated that gases like water vapor and carbon dioxide absorb and radiate heat, confirming their role in the greenhouse effect.
  2. Arrhenius Links CO2 Emissions to Global Warming: In 1896, Swedish scientist Svante Arrhenius was the first to calculate how increases in atmospheric carbon dioxide (CO2) from fossil fuel burning could raise Earth's surface temperature, a conclusion that remains central to modern climate science.
  3. Keeling Curve Confirms Rising CO2 Levels: Starting in 1958, Charles David Keeling initiated continuous measurements of atmospheric CO2 at Mauna Loa Observatory, Hawaii, producing the 'Keeling Curve' which provided the first clear evidence of steadily increasing CO2 concentrations due to human activities.

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