The average car contains more than a ton of iron and steel, 240 pounds of aluminum, 50 pounds of carbon, 42 pounds of copper, 41 pounds of silicon, 22 pounds of zinc, and more than thirty (30) other minerals , including titanium , platinum and gold Now consider that hybrid cars contain MORE minerals than the average car. For example , hybrids use twice as much copper than gasoline powered cars . Minerals must be mined , extracted from Earth , and mining minerals produces environment pollutants and degradation just as drilling for oil does . How then do we justify the benefits of hybrid cars over gasoline powered cars?

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.