With hot regions predicted to get hotter with a changing climate, there’s more need to provide some cool relief. But how do you do that without going in a vicious circle and further pumping CO2 emissions into the air? It’s all about efficiencies, experts say. A baby cools off in front of a portable AC in a shop in London on July 19, 2016, the hottest day of 2016 in Britain. Summer temperatures are rising in many parts of the world. (Adela Suliman/The Associated Press) After walking outside with the sun beating down on a hot, humid summer day, there is nothing like the sweet relief of walking into your home and being greeted by cool, dry air. But that air conditioning cooling your home relies on an electrical grid that most likely produces carbon dioxide (CO2) emissions, contributing to climate change — the very thing that will cause hot, humid days to occur more frequently and with more intensity in some parts of Canada and the world. Summer temperatures are rising in many p...
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