Conjuring images of a dystopia, the shroud of bad air blanketing New Delhi in recent weeks has intensified global pressure on India to curb its greenhouse gas emissions.

India will arrive at the climate change summit in Paris next week as the third biggest generator of fossil fuel pollution blamed for warming the planet, after China and the U.S.

Half of India's emissions come from burning coal. A visit to the coal-rich northeastern Indian state of Jharkhandreveals how this stands to get even worse.

Exposure of underground coal to atmospheric oxygen causes spontaneous combustion. And Indian coal, with its high ash content, ignites at a relatively low temperature, 122 degrees Fahrenheit. Coal seams burning at night in the state's Jharia coal region set off a ghostly, vermillion glow, releasing toxins including carbon dioxide, nitrogen oxides and volatile metals such as mercury.

And yet India intends to triple its production of coal by 2030, extracting rich seams of "black gold" from cavernous open-cast pits. Coal-burning power plants supply 65 percent of India's energy today. The country has only limited reserves of natural gas, a cleaner fossil fuel.

A ramped-up reliance on the most carbon-intensive fossil fuel presents the country with a profound dilemma. A third of the world's poor live in India, and the country needs massive energy to fuel new industries and jobs to pull millions out of poverty. India also needs to extend electricity to 300 million of its citizens living without it.

But coal and its byproducts are hazardous to public health. Even a brief stay in the cities of the Jharia coal mining area takes a toll. Smoke from its many coal fires burns the eyes and stings the throat. Soot covers homes and clings to forlorn-looking cows grazing on land that backs up to the coal fields.

But to meet the power need, India is opening a new mine on average every month.

Fields Of Coal

Coal India Limited, a government behemoth, mined 500 million tons of coal nationwide last year. We watch as operators at one of its open-pit coal projects dynamite the side of a terraced canyon that's so deep, the trucks below look like Tonka toys.

We crunch over row upon row of neatly piled deposits of coal that stretch across the land like a farm at harvest. Charan Singh, the general manager of this Central Coalfields, Ltd., project , steps over the ridges and proclaims, "We're cropping coal here. This is a coal field."

Singh explains how machines cut away surface rock to expose the coal seam that is then pummeled into compact chips. He says the crushing directly at the source saves steps, is more energy efficient and shrinks the operation's carbon footprint. In one year, Singh proudly says, he has reduced the footprint of two mines by 5 percent and 7 percent.

But is that progress too modest?

"World," says Singh, "be patient, because you have progressed but we still require time. We're increasing the production and reducing the footprint. You cannot say we are not taking action. We are taking action."

He says the next 15 to 20 years will tell the story.

One big test will be reforestation: By law, Indian mining companies, the bulk of which are state-owned, must replant twice the amount of land that is exploited for open-pit operations. Coal India says says it is reforesting 2 1/2 times the acreage it is has diverted for mining and planted more than 73 million trees.

The 'Only Alternative' ?

Anil Swarup, Secretary of India's Coal Ministry, says the country is committed to switching to cleaner energy as part of its pledgeto the U.N. Climate Convention. India set an ambitious target of 100 gigawatts of solar energy by 2022, a nearly 25-fold increase from its current solar capacity. Not even Germany, the world leader in solar energy, has built up its capacity that swiftly. Swarup says by 2030, coal will make up just 45 percent of India's power generation.

But until renewables are more widely available, coal will remain king, says Swarup.

"No one would want coal to happen," he concedes. "Coal is happening because that is the only alternative available with us at this point in time. Until there is an answer available, how do you suddenly stop mining coal? You can't."

Meanwhile, aging, inefficient thermal power plants only deepen India's predicament. Kameswara Rao, the lead energy, utilities and mining analyst with PricewaterhouseCoopers India, says in the last estimate, from three years ago, almost 25 percent to 30 percent of the plants "were of a vintage that needed to be shut and entirely retrofitted."

But, he says, there is "an active push to have all the new power plants [be] super-critical," meaning they'll produce more power with less coal and with lower emissions. India says funds and technology from the rich, developed countries would speed that transition.

The affirmed goal for negotiators in Paris is to keep global temperatures from rising 2 degrees Celsius (3.6 degrees Fahrenheit) through the end of the century. But India opposes efforts to obligate countries, especially developing economies, to reduce their greenhouse gas emissions.

Coal Secretary Swarup says that per capita, India releases 1/12 the heat-trapping gases the United States does, and forcing Indians to cut emissions would unfairly penalize them.

"Per capita consumption of energy of this country is [at] the levels of 19th century U.S.," Swarup argues. "And yet everyone is looking at India as if India is trying to not accept their responsibility. We are indeed accepting our responsibility. But what has to be understood very clearly is the requirement for the development of this country."

'Frightening Developments'

For now, the imperative to develop appears to have eclipsed the need to protect India's environment.

The air in many places is foul; the water undrinkable. The World Health Organization says air pollution is now the world's single largest environmental health risk, responsible for 7 million premature deaths a year. Thirteen of the world's 20 most polluted cities are in India.

New Delhi's air is the worst in the world today, WHO says, with cars and trucks the heaviest polluters. In recent weeks, the potentially lethal "small particulate" air pollutionthat lodges deep in the lungs reached levels beyond anything seen in the city previously.

Meanwhile, rising temperatures mean India's Himalayan glaciers are melting and its farmland is becoming arid — all in the midst of unpredictable, often extreme weather.

"We're getting unseasonal rain, we're getting hailstorms, we're getting frightening developments which are impacting our farmers," says Sunita Narain of New Delhi's Centre for Science and Environment. "This is happening not even at [a temperature increase of] 2 degrees [Celsius]. It should scare us!"

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