globalwarming
By The Conversation Ellie Broadman, University of Arizona and Darrell Kaufman, Northern Arizona University Over the past century, the Earth’s average temperature has swiftly increased by about 1 degree Celsius (1.8 degrees Fahrenheit). The evidence is hard to dispute. It comes from thermometers and other sensors around the world. But what about the thousands of years before the Industrial Revolution, before thermometers, and before humans warmed the climate by releasing heat-trapping carbon dioxide from fossil fuels? Back then, was Earth’s temperature warming or cooling? Even though scientists...
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By The Conversation Luciano Rodrigues Viana, Université du Québec à Chicoutimi (UQAC); Charles Marty, Université du Québec à Chicoutimi (UQAC); Jean-François Boucher, Université du Québec à Chicoutimi (UQAC), and Pierre-Luc Dessureault, Université du Québec à Chicoutimi (UQAC) Global coffee consumption has been increasing steadily for almost 30 years. With a daily average consumption of 2.7 cups of coffee per person, coffee is now Canada's most popular drink. It is estimated that around two billion cups of coffee are consumed daily worldwide. This demand has led to considerable diversification...
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By The Conversation Malte Rödl , University of Manchester and Jutta Haider , University of Borås Almost everyone thinks they know how to use Google, and they usually get the answer they want. Many will intuitively know that the query "milk good for you" leads to different results than "milk bad for you". The same goes for queries for "climate change" versus "climate hoax", or for "2020 US Elections valid" versus "stop the steal". Since search engines are more a "wish list" than an authoritative source, they can help spread mis- and disinformation which can be harmful for democracy or society. ...
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By The Conversation Peter Schlosser , Arizona State University The world could still, theoretically, meet its goal of keeping global warming under 1.5 degrees Celsius, a level many scientists consider a dangerous threshold. Realistically, that's unlikely to happen. Part of the problem was evident at COP27, the United Nations climate conference in Egypt. While nations' climate negotiators were successfully fighting to "keep 1.5 alive" as the global goal in the official agreement, reached Nov. 20, 2022, some of their countries were negotiating new fossil fuel deals, driven in part by the global ...
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By The Conversation Finally, after what was arguably the worst summer on record for glaciers, snow has begun to fall in the European Alps. It is much needed. Over the 19 years that I have visited and studied the glaciers in Switzerland, I have not seen a summer like 2022. The scale of change is staggering. Glaciologists like me used to use the word "extreme" to describe annual ice loss of around 2% of a glacier's overall volume. This year Switzerland's glaciers have lost an average of 6.2% of their ice – extreme indeed. The new flurries of snow will form a protective blanket to shield and refl...
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