Sentences with phrase «dioxide than trees»

Hemp could help address climate change, since it absorbs four times more carbon dioxide than trees while growing in just a fraction of the time.

Not exact matches

Deforestation adds more carbon dioxide to the atmosphere than the sum total of all cars and trucks on the world's roads... and over 1 billion trees are cut down each year to produce disposable diapers.

She also said that citizens should realize that whether they are cutting down trees or burning fossil fuels, they are putting more carbon dioxide into the atmosphere than plants can remove.

Those trees are going to fall down and rot and turn into methane, which is much worse than carbon dioxide,» he said, noting that by turning wood chips into biofuel, his company would actually be reducing greenhouse gases from the atmosphere.

This is because large animals disperse large seeded plant species often associated with large trees and high wood density — which are more effective at capturing and storing carbon dioxide from the atmosphere than smaller trees.

We are harvesting trees faster than they can regrow; taking nutrients from soils faster than they can be replenished; depleting fish stocks faster than they can restock; and emitting carbon dioxide into the air faster than nature can reabsorb it.

However, a new University of Minnesota study with more than 1,000 young trees has found that plants also adjust — or acclimate — to a warmer climate and may release only one - fifth as much additional carbon dioxide than scientists previously believed, The study, published today in the journal Nature, is based on a five - year project, known as «B4Warmed,» that simulated the effects of climate change on 10 boreal and temperate tree species growing in an open - air setting in 48 plots in two forests in northern Minnesota.

Scientists measured how much carbon dioxide the artificially warmed plants respired — released into the air via their leaves — and learned that over time, the trees acclimated to warmer temperatures and increased their carbon emissions less than expected.

Overturning textbook knowledge, the researchers discovered that the trees «exhale» less carbon dioxide during the day than previously thought, and that forest photosynthesis doesn't decline over the course of the summer.

Some other statistics: About half of the world's tropical forests have been cleared (FAO) Forests currently cover about 30 percent of the world's land mass (National Geographic) Forest loss contributes between 6 percent and 12 percent of annual global carbon dioxide emissions (Nature Geoscience) About 36 football fields worth of trees lost every minute (World Wildlife Fund (WWF)-RRB- Rain Forest Threats, Rain Forest Species More than half of Earth's rain forests have already been lost forever to the insatiable human demand for wood and arable land.

Beyond local impacts like bad air quality and ecological issues, wildfires also emit large amounts of carbon dioxide, rather than those trees sucking carbon out of the air.

Palm trees grew on the North Slope of Alaska and carbon dioxide levels were 3 to 12 times higher than today's concentrations.

Peter A. Shulman, a historian and author of «Coal and Empire,» tweeted an image of an article from the May 12, 1912, edition of The Daily Picayune * newspaper in New Orleans that seems to imply more of a toxic, than climatic, impact from the buildup of carbon dioxide through fuel burning and the loss of trees to sop up the gas:

Together, replacing fossil fuels in electricity generation with renewable sources of energy, switching to plug - in hybrid cars, going to all - electric railways, banning deforestation, and sequestering carbon by planting trees and improving soil management will drop carbon dioxide emissions in 2020 more than 80 percent below today's levels.

More trees means more carbon dioxide soaked up in vegetation rather than in the air, at least for a time.

Biomass power plants do emit carbon dioxide, a greenhouse gas, but they release no more than what is naturally in the carbon cycle as trees are planted, downed — by man or nature — and replanted.

A laborious study of the girth of 70,000 trees across Africa has shown that tropical forests are soaking up more carbon dioxide pollution than originally thought.

Since the program's inception, more than 2,000 smallholder farmers have already planted over 2 million hardwood, mango, and citrus trees which are projected to sequester 200,000 tonnes of carbon dioxide.

Thawing permafrost also delivers organic - rich soils to lake bottoms, where decomposition in the absence of oxygen releases additional methane.116 Extensive wildfires also release carbon that contributes to climate warming.107, 117,118 The capacity of the Yukon River Basin in Alaska and adjacent Canada to store carbon has been substantially weakened since the 1960s by the combination of warming and thawing of permafrost and by increased wildfire.119 Expansion of tall shrubs and trees into tundra makes the surface darker and rougher, increasing absorption of the sun's energy and further contributing to warming.120 This warming is likely stronger than the potential cooling effects of increased carbon dioxide uptake associated with tree and shrub expansion.121 The shorter snow - covered seasons in Alaska further increase energy absorption by the land surface, an effect only slightly offset by the reduced energy absorption of highly reflective post-fire snow - covered landscapes.121 This spectrum of changes in Alaskan and other high - latitude terrestrial ecosystems jeopardizes efforts by society to use ecosystem carbon management to offset fossil fuel emissions.94, 95,96

After considering the fuel and carbon dioxide emissions that are required to manufacture an artificial tree and ship it to the United States, you would need to use your artificial tree for approximately twenty years to make it a better choice than a real tree.

With warming greater than 2 °C, there is a high risk of abrupt and irreversible changes to ecosystems such as forests, which would lead to «substantial additional climate change» considering that trees sequester significant amounts of carbon dioxide.

Aerial CO2 fertilization is the reason for the increase in plant growth, crop yield, and presumably tree growth for the recent past, where some trees grow at faster rates than others by increasing airborne carbon dioxide concentrations.

That means Hawaii would offset more carbon dioxide than it produces, through activities like planting trees, which can essentially store carbon, the greenhouse gas responsible for climate change.

In the late 1980s, a policy analyst with the World Resources Institute named Mark Trexler realized you could sponge up even more carbon dioxide if you saved endangered rainforest rather than planting new trees, and the energy company Applied Energy Services (AES) worked with him to reduce their carbon footprint by doing just that.

Bamboo plants absorb about 5 times the amount of carbon dioxide (a primary greenhouse gas) and produces about 35 % more oxygen than an equivalent stand of trees.»

Bamboo is a swift growing, renewable fibre that is said to store four times more carbon dioxide (CO2) than a similar stand of trees while releasing 23 % more oxygen.