Extreme weather characterized the first week of 2026. The Northern Hemisphere, particularly Europe, is currently facing heavy snowfall, disrupting various lines of activity. Meanwhile, the Southern Hemisphere, specifically Australia and Latin American countries, are preparing to confront large-scale heat waves and wildfires.

Brazil is experiencing a period of significant extreme weather in early 2026. A severe heat wave is affecting southeastern regions, including Rio de Janeiro and Sao Paulo, with temperatures exceeding 40 C. Health authorities have issued alerts, and increased energy consumption for cooling is straining the power grid.

In Argentina, a wildfire happened in Chubut early January. Authorities in Chubut believe the fire was intentionally caused, and judicial investigators are working to corroborate the charge.