By burning fossil fuels we generate most of the energy needed to sustain our mod

By burning fossil fuels we generate most of the energy needed to sustain our modern life style. Scientists, in the other hand, consider that the use of fossil fuels for more than 100 years is responsible of the global warming. There are some key questions that we must answer:1.           How are fossil fuels contributing with global warming?2.           Are fossil fuels renewable? Explain your answer.3.           Which are the main alternatives to generate energy, that could let us replace the fossil fuels?All opinions are important and valid, and as part of this discussion we must not discuss about the religious beliefs of any participant.Copy / Paste is not allowed (it will be considered plagiarism) and will be penalized with a zero. You must reply respectfully 2 classmates posts (Failing to reply to 2 classmates will represent -20% penalty)
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