Questão de Língua Inglesa

Texto 2 – Questões de 50 a 52. Why the 1950s? The scientific opinion on climate change wouldn’t begin to shift until two significant experiments some 60 years after Arrhenius’ realization. The first, led by scientist Roger Revelle (1909-1991) in 1957 and published in the journal Tellus, found that the ocean will not absorb all of the carbon dioxide released in humanity’s industrial fuel emissions and that carbon dioxide levels in the atmosphere could, therefore, rise significantly. Three years later, Charles Keeling (1928-2005) published a separate study in Tellus that detected an annual rise in carbon dioxide levels in Earth’s atmosphere. With carbon dioxide levels known to affect 14 the climate, scientists began to raise concerns about the impact humanrelated emissions could have on the world. From there, more studies began highlighting climate change as a potential threat to species and ecosystems around the world. “Scientists first began in 1988 to insist that real action should be taken,”Weart said. This occurred at the Toronto Conference on the Changing Atmosphere, where scientists and politicians from around the world gathered to address what was framed as a global threat to Earth’s atmosphere, with calls to reduce emissions and knock-on effects such as acid rain. “By the 1990s, most scientists thought action was necessary, but opposition from fossil fuel companies and ideologists opposed to any government action were effective in obscuring the facts and blocking action,”Weart said. “Plus, normal human inertia and unwillingness to do anything without immediate benefits for oneself.” Fonte: https://www.livescience.com/humans-first-warned-about-climate-change. Acessado em 03/10/2023