Climate change is a shared crisis - one that transcends politics and borders and must be fought collectively, justly and transparently.

At first when I heard about climate change, I was a climate denier. I didn't think it was happening. Because if there really was an existential crisis like that, that would threaten our civilisation, we wouldn't be focusing on anything else. That would be our first priority. So I didn't understand how that added up.

Many feel that in today's climate some of those in authority are exercising, in effect, a self-serving, 'ends justify the means' mindset as well, and that, in turn, empowers them to do the same.

There is a national climate here. We're seeing a rise in hate speech, in intolerance, in racism, in division.

Climate change is an existential threat to our economy, and ultimately to civilisation as we know it.

Elizabeth Warren never stops raising the alarm about climate change and raging about the billionaires.

Around the world, climate change is an existential threat - but if we harness the opportunities inherent in addressing climate change, we can reap enormous economic benefits.

Truly and clearly, the climate changes.

We have a strong tradition in Toronto of really great film writers, and growing up in that climate is a big reason I pursued cinema studies.

The single most important thing we can do to protect our communities from climate change is to reduce dangerous carbon pollution.

We have to take immediate and durable action on climate change.

I hope my kids can experience the seasons and a climate that's sustainable. The idea that things are going to be so very different for them is slightly scary.

I think there's a presumption of a climate emergency which I don't think there is. I think there's a climate problem, I don't think there's an emergency.

Monetary conditions exert an enormous influence on stock prices. Indeed, the monetary climate - primarily the trend in interest rates and Federal Reserve policy - is the dominant factor in determining the stock market's major direction.

I think I'm becoming a climate activist.

I think architects have a major role in being responsible for illustrating what the future could be. Because of the very strong political and commercial climate, many architects are trying very hard to solve everyday issues, to respond to the authorities.

Fashion responds to the economic climate by providing a way to lift a woman's spirits.

Good buildings make and are made by their settings, and they are appropriately different in different locations. Climate, culture, topography and materials have helped create regional architectural languages that seem curiously right for their locations and for all times.

I've been arrested a few times. The most high-profile instance was when protesting at the fracking site in Balcombe. It's an industry which will undermine our chances of tackling climate change.

The squandering of oil and gas is associated with one of the greatest tragedies, not in the least resolved, which is suffered by humankind: climate change.