I would respond to them by saying that climate change was the reason why winters were no longer so mild and dry that they were able to ride scooters on the streets of Toronto.
This is referred to as long-term shifts in temperatures and weather patterns which has occurred due to human activities and its impact on the ecosystem.
Technological advances have led to the use of fossil fuel such as coal, petrol etc in other to power them up and examples include the invention of cars and industries which produce things.
There is also the issue of emission of greenhouse gases such as carbon dioxide , methane etc in various sectors and the lack of trees has also led to a high concentration in the atmosphere which is therefore why the issue of climate change will be used to respond.
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