We believe addressing the risk of climate change is a global issue.
Putting a price on carbon pollution is one of the best things we can do to stem the tide of climate change.
I believe that climate change represents one of the greatest threats to our national security and our planet.
Climate change knows no borders. It will not stop before the Pacific islands and the whole of the international community here has to shoulder a responsibility to bring about a sustainable development.
Healthy forests and wetlands stand sentry against the dangers of climate change, absorbing carbon dioxide from the atmosphere and locking it away in plants, root systems and soil.
I don't know much about climate change. But I'm pretty sure we better figure out what to do to lessen its impact - at least its health impact - and that's not going to happen unless you have a lot of young talent interested in these topics.
Climate change is not a discrete issue; it's a symptom of larger problems. Fundamentally, our society as currently designed has no future. We're chewing up the planet so fast, in so many different ways, that we could solve the climate problem tomorrow and still find that environmental collapse is imminent.
It's the poorer people in tropical zones who will get really hit by climate change - as well as some ecosystems, which nobody wants to see disappear.
Despite widely differing perspectives and agendas, there seems to be a remarkable global consensus that has built up over a fairly short period of time that climate change and ecology is one of the truly defining issues for humanity.
Taking bold action on climate change simply makes good business sense. It's also the right thing to do for people and the planet. Setting a net-zero GHG emissions target by 2050 will drive innovation, grow jobs, build prosperity, and secure a better world for what will soon be 9 billion people.
We need to start by having a conversation about climate change. It would be irresponsible to avoid the issue just because it's uncomfortable to talk about.
We are already experiencing the symptoms of climate change, especially with a hotter and drier climate in southern Australia - the rush to construct desalination plants is an expensive testament to that.
I sort of feel that climate change will be solved by science. I just feel instinctively that we will find a way of saving ourselves. But I am less confident that we won't destroy ourselves in other ways.
The shift to a cleaner energy economy wont happen overnight, and it will require tough choices along the way. But the debate is settled. Climate change is a fact.
I'm a pragmatist.
For someone with a background of economic justice, what scared me about climate change is not just that the sea level will rise and we'll have more storms - it's how this intersects with that cocktail of inequality and racism.
We can look back through ice-core data and see over 800,000 years, relationships between carbon dioxide and the temperature of the world. So those people who deny the importance of climate change are just wasting their time. They're also being diversionary because if we don't act the risks are enormous.
On climate change, we are told that there will be a civilization-ending development in the form of massive sea level rise as soon as 2050. Anybody plan to be here in 2050? I think a few of us do, myself included.
I have to say that if our global alliances are going to be alliances with Hezbollah and Hamas and Hugo Chavez's Venezuela and Vladimir Putin's Russia, there is absolutely no chance of building a world-wide alliance that can deal with poverty and inequality and climate change and financial instability, and we've got to face up to that fact.
We need healthy forests if we want to protect our climate. As the climate changes, forests become more vulnerable to insect outbreaks, droughts and wildfires. Simultaneously, when our forests are destroyed, their carbon is released back into the atmosphere, further impacting climate change. It's a horrifying one-two punch.
My district has been hit with three 500-year floods in the last several years, so either you believe that we had a one-in-over-100-million probability that occurred, or you believe as I do that there's a new normal, and we have changing weather patterns, and we have climate change. This is the science.
Greenhouse gas pollution, through its contribution to global climate change, presents a significant threat to Americans' health and to the environment upon which our economy and security depends.
The forces that are in play on climate change essentially revolve around the generation of power, the transportation of goods and services and people, and the sorts of materials that we use to fuel the whole of our civilisation.
All the major problems of the world today are global in essence, and they cannot be solved unless through some kind of global cooperation. It's not just climate change, which is, like, the most obvious example people give. I think more in terms of technological disruption.
Veganism is an answer for almost every problem facing the world in terms of hunger and climate change.
I believe climate change is real - and I believe we have to act to protect the climate as fast as we possibly can.
