Interesting facts about the environment and human impact?

Question

I'm trying to compile a list of some shocking environmental facts. If you can try to post sources. Thanks.

For example,

"It takes 500,000 trees to produce the Sunday papers printed in the U.S."

Things like that. Thanks.

Answer 1

At the present rate of global population growth, which has been 2% per year for the past 150 years, the world's population will be more than 30 billion in the year 2100 A.D.  

The experts deny this, claiming the growth rate will taper off for one reason or another, but they've been doing that ever since Paul Ehrlich first warned us back in 1968 in the book "The Population Bomb".

They keep moving the date back for this tapering off, because they originally said it would begin happening in the 90's; but the population just keeps on growing at 2% per year.  Get out your calculator and do the math yourself.  The only things that will stop it are the things that always stop it: war, pestilence, or famine.  But the cures are as bad as the ailment.

Just look around you.  Wherever you see a person, there will be five people in the year 2100.  Wherever there are 10 there will be 50.  Now that's what I call human impact on the environment.

Answer 2

MANS DESTRUCTIVE IMPULSES

In Africa I have seen lush wooded lands change into dessert within a few years by large invading comunities ,who devoured the trees for building and firewood ending up in a dessert with out water

and with a hot sun under which no new plantation was possible.The people had changed their climate,this happens all over Africa.

In Northern china two mayor dessert are merging and 900 vilages are buried under the dust ,thousands of refugee farmers who had changed their climate ,by intensive agressive agriculture are fleeing for their lives,

This happens all over the world .it happened in the 20ties in the USA has everybody forgotton that ,was this not a climate change ?

Granted the climatic changes are local ,but effects neighboring areas ,there is less rainfall, rivers dry up ,

Collectively because there is so much of it all over the world ,the global precipitation is affected and so is the climate .

Like Ghengas Kahn changed the climate when he burned all the forests and filled the wells with sand ,Like the Phoenicians changed the climate of lebanon to build the trading fleet .Like the Spanish climate was changed by using their forest to build the Armada ,

So are we today changing the climate by massive deforestation,agressive corporate farming (using chemicals),overgrazing ,overpumping deep subteranean waters ,ignorence and impartiality

Now they are  intending to replace most of the indigenous Forrest's in the world ,with mono cultures for the production of Ethanol,

Non sustainable, chemically grown ,heavily irrigated (with water needed for communities)one specie Forrest's,that have only plagues of insects as fauna which are controlled with pesticides.

Killing all bio diversity,in both flora and fauna ,adding to the destruction and extinction of species ,like nothing we have ever seen before.

All in the quest for alternative energy and to save the Environment ,

The irony here is that the growing eagerness to slow climate change by using biofuels and planting millions of trees for carbon credits has resulted in new major causes of deforestation, say activists. And that is making climate change worse because deforestation puts far more greenhouse gases into the atmosphere than the entire world's fleet of cars, trucks, planes, trains and ships combined.

"Biofuels are rapidly becoming the main cause of deforestation in countries like Indonesia, Malaysia and Brazil," said Simone Lovera, managing coordinator of the Global Forest Coalition, an environmental NGO based in Asunción, Paraguay. "We call it 'deforestation diesel'," Lovera told IPS.

Oil from African palm trees is considered to be one of the best and cheapest sources of biodiesel and energy companies are investing billions into acquiring or developing oil-palm plantations in developing countries. Vast tracts of forest in Indonesia, Malaysia, Thailand and many other countries have been cleared to grow oil palms. Oil palm has become the world's number one fruit crop, well ahead of bananas.

Biodiesel offers many environmental benefits over diesel from petroleum, including reductions in air pollutants, but the enormous global thirst means millions more hectares could be converted into monocultures of oil palm. Getting accurate numbers on how much forest is being lost is very difficult.

The FAO's State of the World's Forests 2007 released last week reports that globally, net forest loss is 20,000 hectares per day -- equivalent to an area twice the size of Paris. However, that number includes plantation forests, which masks the actual extent of tropical deforestation, about 40,000 hectares (ha) per day, says Matti Palo, a forest economics expert who is affiliated with the Tropical Agricultural Research and Higher Education Center (CATIE) in Costa Rica.

"The half a million ha per year deforestation of Mexico is covered by the increase of forests in the U.S., for example," Palo told IPS.

National governments provide all the statistics, and countries like Canada do not produce anything reliable, he said. Canada has claimed no net change in its forests for 15 years despite being the largest producer of pulp and paper. "Canada has a moral responsibility to tell the rest of the world what kind of changes have taken place there," he said.

Plantation forests are nothing like natural or native forests. More akin to a field of maize, plantation forests are hostile environments to nearly every animal, bird and even insects. Such forests have been shown to have a negative impact on the water cycle because non-native, fast-growing trees use high volumes of water. Pesticides are also commonly used to suppress competing growth from other plants and to prevent disease outbreaks, also impacting water quality.

Plantation forests also offer very few employment opportunities, resulting in a net loss of jobs. "Plantation forests are a tremendous disaster for biodiversity and local people," Lovera said. Even if farmland or savanna are only used for oil palm or other plantations, it often forces the local people off the land and into nearby forests, including national parks, which they clear to grow crops, pasture animals and collect firewood. That has been the pattern with pulp and timber plantation forests in much of the world, says Lovera.

Ethanol is other major biofuel, which is made from maize, sugar cane or other crops. As prices for biofuels climb, more land is cleared to grow the crops. U.S. farmers are switching from soy to maize to meet the ethanol demand. That is having a knock on effect of pushing up soy prices, which is driving the conversion of the Amazon rainforest into soy, she says. Meanwhile rich countries are starting to plant trees to offset their emissions of carbon dioxide, called carbon sequestration. Most of this planting is taking place in the South in the form of plantations, which are just the latest threat to existing forests. "Europe's carbon credit market could be disastrous," Lovera said.

The multi-billion-euro European carbon market does not permit the use of reforestation projects for carbon credits. But there has been a tremendous surge in private companies offering such credits for tree planting projects. Very little of this money goes to small land holders, she says. Plantation forests also contain much less carbon, notes Palo, citing a recent study that showed carbon content of plantation forests in some Asian tropical countries was only 45 percent of that in the respective natural forests. Nor has the world community been able to properly account for the value of the enormous volumes of carbon stored in existing forests.

One recent estimate found that the northern Boreal forest provided 250 billion dollars a year in ecosystem services such as absorbing carbon emissions from the atmosphere and cleaning water. The good news is that deforestation, even in remote areas, is easily stopped. All it takes is access to some low-cost satellite imagery and governments that actually want to slow or halt deforestation. Costa Rica has nearly eliminated deforestation by making it illegal to convert forest into farmland, says Lovera.

Paraguay enacted similar laws in 2004, and then regularly checked satellite images of its forests, sending forestry officials and police to enforce the law where it was being violated. "Deforestation has been reduced by 85 percent in less than two years in the eastern part of the country," Lovera noted. The other part of the solution is to give control over forests to the local people. This community or model forest concept has proved to be sustainable in many parts of the world. India recently passed a bill returning the bulk of its forests back to local communities for management, she said.

However, economic interests pushing deforestation in countries like Brazil and Indonesia are so powerful, there may eventually be little natural forest left. "Governments are beginning to realize that their natural forests have enormous value left standing," Lovera said. "A moratorium or ban on deforestation is the only way to stop this."

This story is part of a series of features on sustainable development by IPS and IFEJ - International Federation of Environmental Journalists.

© 2007 IPS - Inter Press Service

Source: http://www.commondreams.org/headlines07/...

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Answer 3

All the paper money in the US is made from cotton