I feel confident that leaders will rise to this challenge with a stronger commitment to tackle climate change and seize the economic opportunities that a post-carbon world has to offer.
The main message we want to get out there is that climate change is caused by the rotten economic system.
The damage that climate change is causing and that will get worse if we fail to act goes beyond the hundreds of thousands of lives, homes and businesses lost, ecosystems destroyed, species driven to extinction, infrastructure smashed and people inconvenienced.
Taking proactive action on climate change is essential to ensuring that Unilever remains a viable business in the future. We will also reap the benefits in innovation, new product development, and cost efficiencies.
National diplomacy strategies are usually focused on promoting one's interests against others' interests. By emphasizing the global 'we' rather than the national 'I' in the climate change debate, COP 21 proved to be a case in point for a change of lenses.
The policies we debate and enact in Congress have a real impact on people across the country. Climate change, immigration, economic inequality - each of these issues have become hot button, partisan topics, but support or opposition on these pressing issues shouldn't come down to party.
American values come by helping countries fight corruption to build stability. American values flow through tackling climate change and building energy independence. American values come through humanitarian assistance whereby we try to stop catastrophes from happening.
I've become interested in the impact of climate change on the world and the future of energy needs for the developing world.
The solution to climate change is staring us in the face. It's energy policy. If we pursue a global clean-energy economy, we can cut dramatically the amount of carbon pollution we emit into the atmosphere and prevent the worst impacts of climate change.
For the Navy, developing alternatives to fossil fuels isn't just about fighting climate change - though that's an important side benefit. Biofuels will also play a much more practical role in the Navy's fuel mix, boosting our energy security and supporting the U.S. economy.
Strong policies and innovation can make the difference for energy security, climate change, air quality, and universal access to modern energy services in parallel - in short, building a secure, affordable, sustainable energy system that is available to all.
So much of what we do addresses the issues that are associated with climate change, whether it's working to reduce emissions, whether it's working to nail down our renewables, whether it's ensuring great efficiency in accessing all of our energy sources.
Global climate change has become entangled with the problem of invasive species. A warmer climate could allow some invaders to spread farther, while causing native organisms to go extinct in their traditional habitats and making room for invaders.
On almost every environmental issue I care about, in fact, I've been wrong at one point or another. I used to think that climate change was no big deal, that most environmental problems were massive exaggerations, that oil reserves were effectively unlimited, and more.
As the former administrator of the Environmental Protection Agency and former governor of New Jersey, I have witnessed the impact of climate change firsthand.
For all of the hurtling towards climate change, there's also a lot more understanding of it than there was when we were kids. They don't call environmentalists tree huggers any more, so there's hope!
Climate change is not an excuse for the EPA to ignore the bounds of law and issue illegal regulations that will cost jobs, shutter industries, and have little to no positive impact on the environment.
The European nations take climate change very seriously.
The bottom line is that the impacts of climate change can exacerbate resource competition, threaten livelihoods, and increase the risk of instability and conflict, especially in places already undergoing economic, political, and social stress.
I believe everyone deserves access to clean air and water, and that climate change has exacerbated this challenge.
