If your school had introduced a much better recycling system a few years ago, what might have happened?, If your school had stopped using so much paper, what could have been different?, If you and your friends had used public transport instead of cars more often last year, what might have happened?, If people had started using renewable energy on a much larger scale 20 years ago, what environmental problems might have been less serious?, If governments had reduced the use of fossil fuels much earlier, what might have happened togreenhouse gas emissions?, If companies had taken their carbon footprints more seriously in the past, what environmental consequences might they have avoided?, If governments had protected forests more effectively, what might have happened to deforestation and climate change?, If people had produced less rubbish and waste management had been better, what might have happened to landfill sites?, If governments had acted earlier to protect coral reefs, what might have been different for marine life?, If a company had continued releasing toxic chemicals into the environment, what consequences might it have faced?, If your generation had grown up with much stricter environmental rules, what might you have done differently as a teenager?, Think of one environmental problem that could have been much less serious. If people had acted differently in the past, what might have happened?

Environment and 3rd conditional

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