Sentences with phrase «land use change»

Future carbon accounting frameworks will need to cover all land uses and land use changes in order to fully recognize the land use sector's mitigation contribution.

The impact of land use change on the energy and water balance may be very significant for climate at regional scales over time periods of decades or longer.

It has been suggested that higher GHG thresholds for direct emissions are an adequate substitute for accounting for indirect land use change emissions.

Before human activities such as land use changes and industrial processes had a significant impact, the global carbon cycle was roughly balanced.

Other sources, including land use change, forestry and agriculture account for around a third of emissions.

A few recent studies still claim that corn ethanol produces fewer emissions than gasoline, but a careful look reveals that their methods don't properly account for land use change.

Cutting down forests has reduced the planet's CO2 absorption capacity, and other land use changes have had a net forcing effect on climate.

Right column: net land use change over each five year period.

Currently deforestation and land use change accounts for 11 percent of global greenhouse gas emissions annually.

What's more, the standard includes a penalty for the carbon emissions caused by indirect land use changes associated with the production of biofuels.

If our assumed land use changes occur a decade earlier, CO2 returns to 350 ppm several years earlier; however that has negligible effect on the maximum global temperature calculated below.

Solar activity too can affect temperatures, as can internal variability or potentially, land use changes etc..

This ability to map changes as they occur is critical for understanding how land use change affects the distribution of human populations and disease - carrying organisms.

The data on land use change indicate that the emissions related to biofuels are significant and can be quite large.

If our assumed land use changes occur a decade earlier, CO2 returns to 350 ppm several years earlier; however that has negligible effect on the maximum global temperature calculated below.

That is actually extremely unlikely since land use change globally is a cooling effect (as discussed above).

Land use change refers to a change in the use or management of land by humans, which may lead to a change in land cover.

Problem is, they won't be able to prove indirect land use change theory in court, against biofuels.

If land use changes are included, wouldn't they have some effect on H2O GHG levels, or not?

In contrast, the conversion to organic farming should consumption patterns remain unchanged would lead to increased land use change to agriculture.

Researchers show that future carbon accumulation rates are highly sensitive to future land use changes.

The alternative is to pursue biofuels that present little risk of significant land use change emissions.

Over time, towns and cities grow, new roads and airports are built, and rural land use changes.

Studies that do factor in land use change show that using food crops to produce biofuels — once considered a promising climate change mitigation strategy — is worse for the climate than gasoline.

The scenario began with 2005 conditions of greenhouse gas emissions, land use and technologies, and then allowed the model to simulate greenhouse gas emissions and land use changes until 2100.

For example, soil is second only to oceans as the planet's largest carbon sink, while agriculture and land use changes represent the second largest source of greenhouse gas emissions.

Its loss is irreversible as the areas that were once populated by the species have since undergone land use change for housing purposes.

In the model simulations with just land use change included, CO2 emissions fall most quickly.

About half of the CO2 that is released through fossil fuel burning or land use changes stays in the atmosphere.

The amount generally credited for land use changes looks closer to the amount of carbon sinking eliminated than actual emissions which are 30 + % of fossil fuel emissions.

We target disturbances such as land use change and fire at the local and regional level.

It is likely that land use changes associated with farmland erosion and natural atmospheric variability also played roles.