6. Según Oscar Rojas en la fuente auditiva, que se ha observado en los últimos años con respecto
al fenómeno de las sequias?
(A) Ha tenido una gran propagación a través del
mundo.
(B) Ha causado la ruina de varias economías
latinoamericanas
(C) Ha contribuido a mejorar la condición del
medio ambiente.
(D) Ha forzado a varios países a transformar el
abastecimiento del agua.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.