And they contain liquid fertilizer.

The smell of gasoline, of fertilizer.

You never bring in fertilizer and chemicals?

So this is these are fertilizer gas plants.

This time it's by turning it into chemical fertilizer.

No plowing, no fertilizer, no pesticide, and no weeding.

Because who wants the fertilizer factory that makes natural gas?

And, we never bring in definitely no fertilizer and chemicals.

So we're thinking that the fertilizer with it has phosphate ions,

What also happened that year is in the areas where there were good rains, and where farmers had previously produced surplus grain, farmers had decided to withdraw from the fertilizer market, not use fertilizer and actually had dropped their use of fertilizer by 27 percent.

Break up carbon dioxide and dissociate water. Make fertilizer, grow crops, all that.

It's produced in the fertilizer industry it's produced in the chemical manufacturing industry.

And it's never been ploughed or dosed with synthetic fertilizer, yet it's clearly thriving.

like petrochemicals and like fertilizer runoff into the price of a bag of chips.

The green revolution, all of this artificial nitrogen fertilizer, we use too much of it.

They also used the flesh as well, for fertilizer and also would fin the sharks.

Over 95 of all the food grown in this country is totally reliant on synthetic fertilizer.

African farmers only use some 22 kilograms of fertilizer per hectare, compared to 144 in Asia.

Then, we take this pipe with very tiny holes, which slowly let out nutrients from the fertilizer.

It's also a fertilizer. Ammonia production consumes more than one percent of the entire world energy budget today.

Some is used as a organic fertilizer, some is used as a biodiesel ingredient, but most of it gets recycled.

And for the nutrients, chemical fertilizers... and at the moment most of the farmers' fertilizer is derived from natural gas.

'cause that's what fertilizer's made of, but it also has other impurities, other chemicals, that are added to the fertilizer.

And if we jam nutrients, sewage, fertilizer in the base of that food pyramid, it can back up all through it.

Their excrement is absolutely teeming with microbes, which continue the decomposition process, making all those once wasted nutrients available again as fertilizer.

And it talks about where the cotton was grown and the fertilizers that were used and the consequences for soil of that fertilizer.

You formulate a recipe based upon the factors you can control, whether it be the skills or the fertilizer or the plant choice.

There are other services like how we make fertilizer, or how we do air transport, where the rooms for improvement are far, far less.

The algae that grow produce oxygen, as I've mentioned, and they also produce biofuels and fertilizer and food and other bi algal products of interest.

So we plant the trees, we plant these pineapples and beans and ginger in between, to reduce the competition for the trees, the crop fertilizer.

Many communities use composting as part of zero waste strategies, and they can sell their worm eaten table scraps to local farms, hungry for rich fertilizer.

And that works as long as we have the cheap fossil fuels with which to make the nitrogen fertilizer and to transport all the inputs and so on.

These red wigglers are surface dwellers who don't burrow too deep, they're optimal feeders around room temperature, and they're well suited to converting organic waste into usable fertilizer.

Cancer cells mutate, and they gain the ability to release lots of those angiogenic factors, natural fertilizer, that tip the balance in favor of blood vessels invading the cancer.

And fertilizers and pesticides are flowing into the bay from the golf course the pesticides killing all the larvae and little animals, fertilizer creating this beautiful plankton bloom and there's your pea soup.

Some years ago, I set out to try to understand if there was a possibility to develop biofuels on a scale that would actually compete with fossil fuels but not compete with agriculture for water, fertilizer or land.

We had slash and burn agriculture people cannot afford the fertilizer, so they burn the trees and have the minerals available there the fires become more frequent, and after a while you're stuck with an area of land where there is no fertility left.

The algae that grow are in a container that distributes the heat to the surrounding water, and you can harvest them and make biofuels and cosmetics and fertilizer and animal feed, and of course you'd have to make a large area of this, so you'd have to worry about other stakeholders

It does this through an elaborate and elegant system of checks and balances, stimulators and inhibitors of angiogenesis, such that, when we need a brief burst of blood vessels, the body can do this by releasing stimulators, proteins called angiogenic factors, that act as natural fertilizer, and stimulate new blood vessels to sprout.

And it's a lively and a lovely place, but we're rapidly changing the oceans with our not only with our overfishing, our irresponsible fishing, our adding of pollutants like fertilizer from our cropland, but also, most recently, with climate change, and Steve Schneider, I'm sure, will be going into greater detail on this.

I think we're all in this room, probably, because we know that, in fact, Africa is the only region in the world where hunger and malnutrition are projected to go up over the next 10 years, where the food import bill is now double what it was 20 years ago, where food production per capita has stagnated, and where fertilizer use has declined rather than increased.

It has been an honor for me, particularly, to work in Rwanda where we also have a major economic development project in partnership with Sir Tom Hunter, the Scottish philanthropist, where last year we, using the same thing with AlDS drugs, cut the cost of fertilizer and the interest rates on microcredit loans by 30 percent and achieved three to four hundred percent increases in crop yields with the farmers.

If you can drop this recipe on the map on a sandy soil, on a clay soil, on a steep slope, on flat soil, you put those different recipes if you combine them, out of that comes a business plan, comes a work plan, and you can optimize it for the amount of labor you have available or for the amount of fertilizer you have, and you can do it.