Quotes About Carbon cycle

One of the volumes, "Atmospheric Carbon Dioxide and the Global Carbon Cycle," noted that CO2 levels had varied in the last million years with a high point, during warm, interglacial phases, of 350 ppm.21 An enormous amount had been learned; the "Projecting the Climatic Effects of Increasing Carbon Dioxide" alone was over 400 pages long, and is full of hard evidence of how much the federal government knew about the impacts of burning fossil fuels.

for the same carbon is forever passing from atmosphere to plant, from plant to animal, and from animal to atmosphere, this last being the common storehouse

Only a few components of our atmosphere are greenhouse gases, which absorb infrared photons. The three most important are (in order) water vapor, carbon dioxide, and methane. Nitrogen, oxygen, and argon, which make up approximately 99.9% of the dry atmosphere, are not greenhouse gases. • The carbon cycle describes how carbon cycles through its primary reservoirs: the atmosphere (containing 100 GtC), land biosphere (2,000 GtC), ocean (1,000 GtC in

some 365 billion metric tons of carbon to the atmosphere.

And to see a plant grow armed with the knowledge that it does so out of thin air – that is, after all, where the carbon that makes up most of its mass comes from – is to realise that something else must be restoring that nutritive goodness to the atmosphere.

Emissions of greenhouse gases warm the planet, altering the carbon and water cycles. A warmer ocean stores more heat, providing more fuel for hurricanes. A warmer atmosphere holds more water, bringing dangerous deluges. Rising sea levels threaten coastal zones.

Plate tectonics is not all havoc and destruction. The slow movement of continents and ocean floors recycles carbon dioxide dissolved in the oceans back into the atmosphere. Without this slow speed carbon cycle, Earth's temperatures would cool dozens of degrees below your comfort zone.

Within a few centuries we are returning to the atmosphere and oceans the concentrated organic carbon stored in sedimentary rocks over hundreds of millions of years.

Just as human activity is upsetting Earth's carbon cycle, our actions are altering the water cycle.

If you look at the ecological circuitry of this planet, the ways in which materials like carbon or sulfur or phosphorous or nitrogen get cycled in ways that makes them available for our biology, the organisms that do the heavy lifting are bacteria.

Most of the earth's land is not conducive to arable cropping. Only a tiny percentage is good enough for that. Grasslands are literally the lungs of the earth, and restoring them with animals is not only necessary, but it's the most efficacious way to restore water cycles and the carbon cycle. Right now, nothing else comes close to remediating broken ecological systems as quickly or completely as restoring large herds of grazing animals through holistic, or long-term, management.

Consider carbon, for example. The lifetime of carbon in the combined atmosphere-ocean-biosphere, the time it takes on average before the typical carbon atom is transferred to the sediment, is less than 200,000 years.

The Phanerozoic Carbon Cycle