South America's Winter Ends with a Blistering 110 Degrees

South America is experiencing extreme heat as temperatures soar above 40 degrees Celsius (104 Fahrenheit) in Peru, Bolivia, Paraguay, Argentina, and Brazil. A heat dome, El Niño, and human-caused global warming are contributing to the high temperatures. Several September heat records have been broken, with more at risk of falling. The heat has increased the fire risk in Brazil, and the extreme temperatures are expected to continue. Other parts of the Southern Hemisphere, including Australia, are also experiencing unusually hot spring weather. Climate change is a major factor in the extreme heat, with the Northern Hemisphere having its hottest summer on record.