Business leaders, social justice groups, farmers and ranchers, doctors and nurses and people from all walks of life are concerned about the climate threat.

Climate change deniers would have us believe that oil, gas, and coal are the only ways to power a modern, industrialized society. They are wrong, and the proof is all around us.

Strong limits on carbon pollution will save Americans money, create jobs, improve our health, and help defuse climate change.

Tar sands oil is the dirtiest fuel on Earth. Because producing it consumes so much energy, a gallon of tar sands crude generates 17 percent more carbon pollution than conventional crude oil.

Green roofs, roadside plantings, porous pavement, and sidewalk gardens have been proven to reduce flooding. They absorb rainwater before it swamps the streets and sewage systems.

New York and Connecticut belong to the Regional Greenhouse Gas Initiative to cut carbon emissions, and New York City has been a leader in energy efficiency.

We'll always need energy. We need to communicate, too, but we're not stuck with hand gestures and smoke signals. There are better ways to power our future than by digging fossil fuel from the ground and setting it on fire.

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.

The U.S. can become carbon neutral in our lifetimes. In the process, we will put millions of Americans to work, make our companies more competitive, and shield our communities from extreme weather. And we will honor our obligation to leave the world a better place for future generations.

Los Angeles County is one of the most park-poor urban areas in the nation, and the San Gabriel Valley - stretching from Pasadena to Pomona - is especially starved for open space.

Declaring the San Gabriel Mountains a national monument will make this natural wonder more accessible. It will welcome people from all walks of life and maintain the mountains' wild character at the same time.

Nearly every president in the past 100 years has declared national monuments, from Teddy Roosevelt creating the Grand Canyon National Monument to George W. Bush preserving 10 islands and 140,000 square miles of ocean waters in the Northwestern Hawaiian Islands.

The San Gabriel monument expands our natural heritage, but there is more in need of safeguarding - extraordinary places like Utah's Greater Canyonlands.

The San Gabriel Valley, stretching from Pasadena to Pomona, is especially starved for open space. The valley has a rich array of ethnically diverse communities, but it also has some of the highest rates of childhood obesity and diabetes in the state.

NRDC has helped bring hope spots to more of our shared ocean waters. We helped draft and pass a California law creating a network of underwater parks stretching from the Oregon border to the Mexican border.

Back when the EPA proposed phasing out ozone-depleting CFCs, the chemical industry howled that refrigerators would fail in America's supermarkets, hospitals and schools.

The Pacific Remote Islands Marine National Monument may be distant from our shores, but it will help us understand how healthy marine ecosystems work and how we can revive troubled seas closer to home.

Americans welcome carbon limits because they want to protect their families from harm.

The U.S. limits mercury, arsenic, and soot from power plants. Yet, astonishingly, there are no national limits on how much carbon pollution these plants can dump into our atmosphere.

The U.S. has a proud history of cleaning up our air through technological innovation. We did it with leaded gas, acid rain and countless other pollutants, and we can do it with carbon pollution, too.

When I left school, I never wondered whether my apartment in New York was vulnerable to storm surges, but my three daughters have to consider the realities of extreme weather and how it may destabilize communities around the globe.

Young people are already leading on climate action. I see it at rallies to reject the Keystone XL dirty tar sands pipeline. I see it in the push to demand justice for communities being run over by fracking operations.

Americans are worried about pollution - oil trains running through their towns, fracking in their neighborhoods, coal dust in their air. They're worried about what the future will look like for their children if carbon pollution continues unchecked.

I have talked to people across the country struggling in the face of an altered climate. New Jersey homeowners are trying to rebuild after Superstorm Sandy. Miami government officials are trying to plan for rising seas and flooded streets. California farmers are trying to make it through the state's worst drought on record.

Water efficiency, recycling, and other local supplies will help California flourish in a drier future.

The truth is you can't get more water from reservoirs that are empty.

California's drought affects everyone in the state, from farmers to fishermen, business owners to suburban residents, and everyone has a role to play in using precious water resources as wisely and efficiently as possible.

The more people learn about the proposed Keystone XL tar sands pipeline, the worse it looks.

Instead of hazarding our future on the dirty fuels of the past, let's invest in clean power that can drive this country forward. Let's cut energy waste, make our economy the world's most efficient, and give our workers a leg up in the global marketplace.

After being nearly eradicated from the lower 48 states by the 1960s, bald eagles were re-introduced to the Adirondacks in the 1980s, and I'm proud to report the view from my home indicates they are flourishing in upstate New York.

Mercury is a potent toxin that interferes with the human nervous system. Reducing this hazard will be a major public health breakthrough.

Whether it is salt farmers in India embracing solar power or wind companies creating tens of thousands of jobs in America, people are providing a vision for the clean energy future.

Countries have made impressive pledges to cut carbon pollution, but we have to ensure these promises become actions.

Though every nation must do its part to address climate change, developed nations are responsible for the lion's share of carbon pollution in the atmosphere, and they have an obligation to help developing nations transition to a sustainable future.

Putting a tax on carbon could be an effective approach for curbing global warming pollution.

Too often, the air conditioners we use to cool down also contribute to climate change - the very force that's fueling extreme heat.

Shell Oil's decision to pull the plug on drilling for oil in the Chukchi Sea is a major victory for the Arctic.

Our nation has abundant clean energy resources, and tapping them will generate jobs, make the air safer to breathe, and tackle climate change - the greatest environmental crisis of our time.

When climate change supercharges weather patterns, the disadvantaged often suffer first and most.

Instead of going to the ends of the Earth - and plumbing the depths of the oceans - to squeeze out every last drop of oil, we need, instead, to do everything we can to reduce the risks of offshore oil and gas production.

Business leaders, social justice groups, farmers and ranchers, doctors and nurses and people from all walks of life are concerned about the climate threat.

Climate change deniers would have us believe that oil, gas, and coal are the only ways to power a modern, industrialized society. They are wrong, and the proof is all around us.

Strong limits on carbon pollution will save Americans money, create jobs, improve our health, and help defuse climate change.

Tar sands oil is the dirtiest fuel on Earth. Because producing it consumes so much energy, a gallon of tar sands crude generates 17 percent more carbon pollution than conventional crude oil.

Green roofs, roadside plantings, porous pavement, and sidewalk gardens have been proven to reduce flooding. They absorb rainwater before it swamps the streets and sewage systems.

New York and Connecticut belong to the Regional Greenhouse Gas Initiative to cut carbon emissions, and New York City has been a leader in energy efficiency.

We'll always need energy. We need to communicate, too, but we're not stuck with hand gestures and smoke signals. There are better ways to power our future than by digging fossil fuel from the ground and setting it on fire.

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.

The U.S. can become carbon neutral in our lifetimes. In the process, we will put millions of Americans to work, make our companies more competitive, and shield our communities from extreme weather. And we will honor our obligation to leave the world a better place for future generations.

Los Angeles County is one of the most park-poor urban areas in the nation, and the San Gabriel Valley - stretching from Pasadena to Pomona - is especially starved for open space.