Rank three issues that you believe to be the most serious threats to our environment as a result of global warming, number one being the most serious. then, on a separate sheet of paper, explain in paragraph form why you selected these three issues to be the most serious. then, explain in paragraph form why you selected these three issues to be the most

Polar Ice Melting. The first and foremost important issue related to global warming is the melting of polar ice. This is important because of the albedo effect, the capability of the ice to reflect and deviate part of the sunray, that without the ice are absorbed, even more, causing more heat. This is also important because we do not know yet the effect of the polar ice melting on ocean currents and weather patterns.

Acidification of oceans. Another issue related to global warming is the acidification of oceans: this is a phenomenon that occurs when the balance of substance in the ocean is disrupted, causing more acid ions to run free, making oceans more acid. This is a problem because many of the basic life forms that live in the oceans are very sensible to Ph changes. 

Extreme weather events. With global warming, the usual patterns of weather are disrupted, and they are replaced with patterns that are less known and so forecasts are not as good as they are now. Moreover, extreme events like tornado and hurricanes are probably as a result of more heat in the atmosphere. 

Those three issues because they are the ones that provoke the most consequences and they also have serious consequences on humans as well, as everything we do to the environment will also come back to us, one way or another.

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hola:

ef0: daños leves. algunas tejas caídas y otras pequeñas piezas de los tejados arrancadas, algunos daños en canaletas, ramas de árboles rotas y algunos árboles poco profundos arrancados. los tornados que no causan daños visibles (por ejemplo aquellos que se producen en campos abiertos) se valoran siempre como de ef0.

ef1: daños moderados. tejados seriamente despedazados, caravanas y casetas volcadas o seriamente dañadas, perdida de puertas exteriores y ventanas y otros cristales rotos.

ef5: daños increíbles. las casas fuertes pueden quedar arrasadas hasta los cimientos, las estructuras de hormigón armado dañadas críticamente, los edificios altos sufren graves deformaciones estructurales. devastaciones increíbles.

y según esto creo que puedes sacar tus conclusiones. y la verdad la escala ef10 si no se decirte por que no la eh visto o mejor dicho estudiado. espero que te sirva. suerte.