A third of Earth's species could become extinct by 2100 if climate change isn't curbed

Almost one-third of species around the world would be at risk of extinction by the end of the century if we continue to churn out greenhouse gases, according to a new study. The study found that if global temperatures rise to 2.7 degrees Fahrenheit (1.5 degrees Celsius) above the pre-industrial average temperature, exceeding the target of the Paris Agreement, extinctions would rapidly accelerate — especially for amphibians; species in mountain, island and freshwater ecosystems; and species in South America, Australia and New Zealand. Earth has already warmed since the Industrial...