write an speech on 'is climate change due to human activity'
Answers
Answer:Climate change is real
Say “climate change” and see how most people react. I find it’s a bit like “sustainable development”: a phrase at which many people quietly glaze over and switch off. So here’s the first point: Don’t switch off. Climate change isn’t just words. It is a real Thing. And man-made climate change is a very scary real thing.
The rise in global temperature over the last several decades is a matter of public record. There is an overwhelming scientific consensus that it can only be explained by one thing: the rise in greenhouse gas emissions caused by human activities.
Some people say that climate change is natural and we shouldn’t worry. The answer to that is that we have indeed had naturally-occurring climate change since the Earth was formed. But none of the natural causes of climate variation, from the Sun’s output, the tilt of the Earth, volcanic activity or emissions from rotting vegetation, can account for the warming we observe today. There is only one thing that can: the emissions from fossil fuels caused by human activities over the last two hundred years. The concentrations of carbon dioxide in our atmosphere have increased by nearly 30% since the beginning of the industrial revolution.