Sentences with phrase «human carbon emissions»

It concluded that due to the amount of human carbon emissions in the atmosphere, the planet has reached 3 to 7 degrees Celsius of global warming.

After that, the planet warmed without significant human carbon emissions to blame, so what caused it?

It is characteristic of a type of forest that is playing a big role in limiting the damage from human carbon emissions: a recovering forest.

The study, published today in Nature, places the blame squarely on rising global temperatures driven by human carbon emissions.

One recent study found that the average global temperature would rise another 3.2 ° by the end of the century even if human carbon emissions dropped to zero tomorrow, a scenario that is, of course, extremely unlikely.

«Thousands of scientists have been funded to find a connection between human carbon emissions and the climate.

But build and buttress as it might, New York is hopeless in the long term if we can't somehow stop human carbon emissions soon.

Compared with the potential feedbacks from fossil methane or methane hydrates, the permafrost feedback from surface thawing is more certain and will happen sooner, very likely in this century, regardless of the level of future human carbon emissions.

He wrote a well - reviewed book called «The Climate Fix: What Scientists and Politicians Won't Tell You About Global Warming,» in which he presents measured skepticism of climate - change orthodoxy — for example, he believes the role of carbon emissions from human industry is greatly exaggerated by politicized science, but he doesn't think human carbon emissions are irrelevant, and is not implacably hostile to the goal of reducing them.

Its methodology involves constructing and comparing two separate «accounts,» representing the supply and demand of renewable biological resources across six mutually exclusive land - use types: cropland, grazing land, forest, fishing ground, built - up land, and the area of forest required to offset human carbon emissions (the carbon footprint).

The settled science assertion that rising CO2 will quickly and assuredly result in cataclysmic consequence is necessesary so as to demonize human carbon emission.

The belief that warming is principally caused by human carbon emissions is completely unwarranted based on the evidence available.

The USGS model also underestimates the extent of permafrost loss by the end of the century, he said, adding that his research shows two - thirds of the state's permafrost could be lost by 2100 if human carbon emissions aren't cut.

Human carbon emissions are certainly disturbing the climate system upon which we depend, and in spite of the economic slowdown, and despite all the efforts by governments, businesses and people to reduce them, our emissions are reaching new highs.

However, reams of peer - reviewed research, basic physics, the ability to track the specific chemical fingerprint of fossil fuel - driven carbon, and the fact that no models can replicate this century's warming without pumping up carbon dioxide and other greenhouse gases in the atmosphere give scientists confidence that human carbon emissions are driving the globe's temperature higher.

Oceans absorb half of all human carbon emissions, but the Southern Ocean is taking up less and less and is reaching its saturation point, reported an international research team in the journal Science.

Forests soak up roughly 25 percent of human carbon emissions, but some models suggest that by the end of the century the world's forests could flip from a critical carbon sink to a major source.

I no doubt that enough feedbacks have kicked in that we could cease all human carbon emissions today, and over the next 50 years we would still see the Earth warm to more than 2C as it comes to thermodynamic equilibrium with the forcing from 400 ppmv CO2 and all feedbacks.

However, I think the evidence favours a significant climate impact due to human carbon emissions and therefore some response is required.

Nevertheless, climate scientists realized a half century ago that human carbon emissions qualify as pollution due to the dangers they pose via climate change.

With pictures of belching smokestacks, the clear implication is that human carbon emissions are going to create this runaway greenhouse.

In other words, if Dr. Goldblatt's figures are correct, the possibility of a runaway greenhouse is extremely unlikely, the chances of a runaway greenhouse due to human carbon emissions are non-existent, and the UVic website's main headline is seriously misleading and unnecessarily alarmist.

That means if plants around the world continue to adjust to rising carbon dioxide concentrations, increasing their biomass on a global scale, they could actually help offset some of our human carbon emissions by removing more carbon dioxide from the air.