It is a never ending winter here in South America. “What a hell is happening this year with a seven-month winter”, asked a famous TV journalist about the unusual climatic winter of 2007 that began with fury in May and still persist in November. Buenos Aires recorded this Thursday (November 15th) the lowest temperature for the month of November in 90 years. Temperature in the Downtown weather station reached 2.5C. Since records began more than a century ago, only two days had colder lows in November. It was in 1914 (1.6) and 1917 (2.4). And ninety years ago the urban heat island effect was much less pronounced than nowadays, what turns the temperature observed today remarkable.
The much colder than usual weather was not confined to Argentina. This Thursday had near-freezing temperatures and frost in Uruguay. Weather stations recorded 1.5ºC in Trinidad; 1.8ºC in Durazno; 2.4ºC in Tacuarembó; 3ºC in Artigas; 3.2ºC in Melo and Florida; 3.8ºC in Treinta y Tres; 4.1ºC in Paso de los Toros; 4.6ºC in Rivera and 4.8ºC em San José.
In the southernmost state of Rio Grande do Sul in Brazil temperatures fell to 2.3ºC degrees in several towns near the border with Uruguay on Thursday. Wind and cloud cover prevented lower temperatures in the higher altitudes, but earlier in the week several towns in the Sierras region recorded temperatures near zero Celsius and frost. In Sao Joaquim, the low was 1.6 below zero with moderate frost on Monday (November 12th).
Adapting to the damaging effects of climate change, plants are gradually moving to where temperatures are cooler, rainfall is greater, f...