Battuto il record del riscaldamento terrestre


L'effetto serra dovuto all'anidride carbonica e al metano nell'atmosfera ha fatto schizzare in alto la temperatura del pianeta. Ma si tratta di un dato non sufficiente per porre la sordina alla polemica dei repubblicani nei confronti del Presidente Obama che vorrebbe limitare l'emissione di CO2.

The Earth's temperatures reached the warmest level in more than a century of records, breaking the previous high mark set in 2014, federal scientists said Wednesday.
The data is the latest to show the upward trend in the Earth's temperature, which scientists say is caused by the buildup of greenhouse gases like carbon dioxide and methane in the atmosphere. But the news is not expected to alter Republican political arguments against President Barack Obama's climate change initiatives, such as his EPA regulations to limit CO2 emissions from power plants or his pledges under the new Paris agreement to reduce the nation's emissions of greenhouse gases.
Overall, 2015 global temperatures rose by 1.62 degrees Fahrenheit over the 20th century average, reaching the highest level in 136 of record-keeping, the National Oceanic and Atmospheric Administration and NASA said. Last year's temperatures surpassed the 2014 record by a wide 0.29-degree margin.

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