Carbon dioxide emissions are contributing to climate change, which is causing average global temperatures to increase. these temperature increases have led to a loss of sea ice in the arctic. populations of polar bears, which depend on sea ice as part of their habitat, have declined as a result of this loss. the rate of arctic sea ice loss is predicted to increase if the current temperature trends continue. what is the best long-term solution to maintain polar bear populations? a. introducing plants capable of bioremediation to the arctic b. replacing fossil fuels with renewable energy sources c. identifying new sources of fossil fuels around the world d. establishing several protected regions in the arctic

The best solution is - B. replacing fossil fuels with renewable energy sources.

By replacing the fossil fuels with renewable energy sources the enormous release of carbon dioxide into the atmosphere will be stopped and minimized because the renewable energy sources are not emitting Greenhouse gasses into the atmosphere.

Unfortunately, this type of energy sources still can not satisfy the demand, and also big problem represents the economic justification of their usage, and lots of countries are not willing to lose profit in order to protect the environment.

i think the answer would be d

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.