While adapting to climate change is costly, there is also evidence that it can be good for the economy. Between 2005 and 2017, 41 countries increased their gross domestic product while reducing carbon dioxide emissions, according to a recent analysis by the World Resources Institute think tank. “The Paris Agreement is an unprecedented framework for global action. We know this because we helped design it and make it a reality,” Foreign Minister Antony Blinken said in a statement. “Its goal is both simple and broad: to help us all avoid catastrophic global warming and be resilient around the world to the effects of climate change we are already seeing.” Scientific consensus was measured by reading abstracts from nearly 12,000 scientific papers. This exercise is easy for anyone to repeat: just look at the articles published in legitimate climate science journals and see how many agree with the idea that humans are changing the climate. Or, if reading isn`t your thing, attend a geoscience conference and listen to what the scientists are saying. They agree – because the evidence is overwhelming. See the teaching material on orbital cycles (Milankovitch cycles) that naturally cause climate variability. In addition, the rate of temperature change is increasing: “Global annual temperature has increased since 1880 at an average rate of 0.07°C (0.13°F) per decade and more than twice as fast (+0.18°C/+0.32°F) since 1981.” (Quote from the noAA page linked below). Even though it is a scientific issue, communication is sometimes more difficult than science.
See teaching materials on climate communication. Whether or not it is possible to remove carbon already emitted from the atmosphere, preventing future warming requires ending greenhouse gas emissions. The most ambitious effort to date to prevent global warming is the 2016 Paris Agreement. This non-binding international treaty aims to keep warming “well below 2 degrees Celsius above pre-industrial levels and make efforts to further limit the temperature increase to 1.5 degrees Celsius,” according to the United Nations. Each signatory to the treaty has agreed to set its own voluntary limits on greenhouse gas emissions and tighten them over time. Climate scientists said the emission limits set under the deal would not keep warming as low as 1.5 or even 2 degrees C, but that it would be an improvement over the “status quo” scenario. .