For example, herring contains mercury levels at about 0.1 parts per million, while shark contains mercury levels greater than 1 part per million.

This imbalance, if we want to stabilize climate, means that we must reduce CO2 from 391 ppm, parts per million, back to 350 ppm.

Description It is able to tolerate soils with copper concentrations of up to 15,000 ppm, and soils with nickel concentrations of almost 5000 ppm.

350 parts per million. 350, the most important number on earth.

A portion of the 1 million would be used to produce videotapes

If we are to have a good chance of achieving that target, the concentration of CO2 must not be allowed to exceed 450 parts per million (it is now nearly 390 ppm).

Right now, if you look at the top right part of that graph, we're at 385 parts per million.

Nature naturally has allowed carbon dioxide to go up to 280 parts per million.

1805 Joseph Louis Gay Lussac discovers that water is composed of two parts hydrogen and one part oxygen by volume.

The salt concentration is usually expressed in parts per thousand (permille, ) or parts per million (ppm).

A classic example is James Hansen, a NASA climatologist pushing for 350 parts per million carbon dioxide in the atmosphere.

When the first IPCC report was published in 1990, the concentration of CO2 in the atmosphere had reached 354 parts per million (up from the preindustrial baseline of 280 ppm).

This means that between one million and 1.5 million Sunnis have fled the capital.

This compared to an average level of 4 ppm for people living outside the Minamata area.

The name comes from the number of parts per million of carbon dioxide in the atmosphere that, according to Jim Hansen, perhaps the world s leading climate scientist, we should not exceed if we are to avoid potentially catastrophic climate change. It is a measure of the seriousness of our problem that CO2 is already at 386 ppm, and is rising by two ppm each year.

Only 155 ppm include deuterium ( or D), a hydrogen isotope with one neutron, and fewer than 20 parts per quintillion include tritium ( or T), which has two.

He is a Twitter superstar, with more than a million followers.

And it rivals climate change in importance.

Within just 50 years that's one hundredth of one millionth of the Earth's age the amount of carbon dioxide in the atmosphere started to rise, and ominously fast.

A more recent study suggested even higher CO2 concentrations of up to 3180 parts per million.

The last time CO2 was 390 ppm, today's value, sea level was higher by at least 15 meters, 50 feet.

A classic example is James Hansen, a NASA climatologist pushing for 350 parts per million carbon dioxide in the atmosphere.

The irony is that while Africa apos s exports have increased in volume, export earnings in real terms have declined.

Rare earth elements change through time in small quantities (ppm, parts per million), so their proportion can be used for geochronology and dating fossils.

It almost doubled in size during the 1991 2000 period.

80 parts per million hydrogen sulfide.

The interwar period saw a rapid growth in the city's population, which surpassed one million inhabitants.

Within just 50 years that's one hundredth of one millionth of the Earth's age the amount of carbon dioxide in the atmosphere started to rise, and ominously fast.

But in just a tiny sliver of the Earth's history, the last one millionth part, a few thousand years, the patterns of vegetation altered much faster than before.

These human induced alterations occupying overall less than a millionth of the elapsed lifetime and seemingly occurring with runaway speed?

In many countries, domestic tourism outweighs international arrivals in terms of volume and income generated.

Because that's part of where we've got to get to.

The evidence also shows that contamination levels are extremely variable, ranging from non detectable amounts to 810,000 ppm.

It has been estimated that the solid earth as a whole contains 730 ppm of carbon, with 2000 ppm in the core and 120 ppm in the combined mantle and crust.

For developing countries, the required cuts were 14 (by volume) and 24 (by value) over ten years.

The Group comprises countries which are as diverse in culture as they are in size and resources.

Like a million.

At the rate of about two and a half parts per million per year.

The idea was to restrict addicts to a specific part of town where they could be monitored.

It is a dream come true to be part of this choir, as I've never been part of one.

They were so large that a patch of hairs about this size the gecko's foot could support the weight of a small child, about 40 pounds, easily.

And although they vary enormously in scale, maturity and purpose, when we dived into them, we realized that they could actually be organized into three clear systems.

To add to the lack of uniformity, broadsheets also vary in size.

Other specific toxic effects listed below are assessed separately in the GHS and consequently are not included here

3.8.2.1.7 (former 3.8.2.7) In the title, insert for Category 1 and 2 after classification .