"We
have
to be better stewards of our own planet so that we can go out and explore beyond
our planet with a clear conscience." Professor Monica Grady (Natural History Museum) | |||||||||||||||||||||||||||
| On this page:
| |||||||||||||||||||||||||||
|
| Gwynne
Lyons, WWF toxics adviser -"We
are all living in a global chemical experiment of which we don't know the outcome.
Our children are our future - and our future is under threat. It seems unbelievable
that although science has shown that chemicals are affecting children's mental
abilities and their ability to make sense of their world, we are still missing
vital safety data on most chemicals in use today." | ||||||||||||||||||||||||||
|
| |||||||||||||||||||||||||||
| |||||||||||||||||||||||||||
Component Mean % increase in organic produce vs non-organic produce: Dry
matter +26% Click
here for 10 Top Reasons to Go Organic | |||||||||||||||||||||||||||
| | |||||||||||||||||||||||||||
| Should Beavers and other lost mammals be reintroduced to Britain's countryside? Amongst other naturalists, the Kent Wildlife Trust thinks so. Experience on the continent shows that the reintroduction of Beavers, Lynx (which have not been seen in the wild since the Roman occupation), wolves, and wild boar, could boost tourism and provide new economic life to remote rural areas. The argument goes that Britain's fauna would be better balanced if extinct predators were brought back. It has even been suggested that one group of mammal enthusiasts might have already released Lynx into the wild without the knowledge of the authorities. |
Throughout
the world, the ancient forests are in crisis. Many of the plants and animals
that live in these forests face extinction. And many of the peoples and cultures
who depend on forests for their way of life are also under threat. But the news
is not all bad. If world governments choose now to SAVE the ancient forests, there
is a last chance to protect these forests and the life they support.
| ||||||||||||||||||||||||||
Fifth
of bird species 'threatened' More than a fifth of the world's bird population are threatened with extinction, according to an annual survey. BirdLife, a global alliance of conservation groups, said that 1,212 of the planet's 9,775 bird species were in imminent danger of disappearing, while a further 788 were considered "near threatened." Among the species currently at risk, 179 were categorized as "critically endangered," the highest level of threat. These included the Azores bullfinch, one of Europe's rarest songbirds, which was upgraded from "endangered." Fewer than 300 of the species survive as a consequence of deforestation and changes to the vegetation of its native islands. Last year BirdLife launched a five-year project to save the species, with the Portuguese government creating a Special Protection Area to revive its surviving habitat.
There is some good news for birdwatchers, however. There were eight sightings of the native North American ivory-billed woodpecker in the U.S. in 2004 and 2005, more than 60 years since it was believed to have become extinct. The Seychelles magpie robin, which had dwindled to less than 15 birds in 1965, was downgraded to endangered as a consequence of a program that has seen the bird relocated to predator-free islands, reviving the population to more than 130. Ornithologists also discovered a new species of rail on the island of Calayan in the Philippines. But BirdLife said it had found no trace of the thick-billed ground-dove in the Solomon Islands and had classified the species as extinct. "Despite the recent rediscovery of the ivory-billed woodpecker, overall more species are currently sliding towards oblivion," said BirdLife's Ed Parnell. "One in five bird species on the planet now faces a risk in the short or medium-term of joining the Dodo, Great Auk and 129 other species that we know have become extinct since 1500." | |||||||||||||||||||||||||||
| |||||||||||||||||||||||||||
The Arctic region, including the land masses of northernmost Europe and North America, have become an inadvertent dumping ground for chemicals The
Arctic may seem remote and pristine, but winds and tides carry man-made toxins
to the region, endangering wildlife there. The fragile Arctic can serve as an
early warning to the rest of world, said the World Wildlife Fund, launching an
international campaign to control or ban man-made chemicals. "Like the small portion
of an iceberg that can be seen from above the water, chemicals that scientists
now know to be contaminating the animals of the Arctic may be a warning of a larger
problem that, for now, remains hidden," the environmental group disclosed in
The
report said the Arctic region, including the land masses of northernmost Europe
and North America, have become an inadvertent dumping ground for many of the chemicals
because of climate conditions. Air with contaminants reaches the cold Arctic,
condensation forms and the toxins are carried to the ground in rain or snow, where
the cold slows their decomposition. "As a result, the Arctic acts as a final 'sink'
where pollutants from around the world accumulate and become trapped. The wildlife
of the Arctic is especially vulnerable to chemical pollution," the report said.
Contaminants are also carried by ocean currents. For example, decabromodiphenyl
ethers, or deca-BDEs, are one of about 70 | |||||||||||||||||||||||||||
Greenland's ice cap, which contains enough ice to raise sea levels globally by 23 feet (7 meters), is starting to melt and could collapse suddenly "There
is no doubt that something very major is happening here." Studies looking at the oceans and melting Arctic ice leave no room for doubt that it is getting warmer, people are to blame, and the weather is going to suffer, climate experts have said. New computer models that look at ocean temperatures instead of the atmosphere show the clearest signal yet that global warming is well under way, Tim Barnett of the Scripps Institution of Oceanography said. Speaking at an annual meeting of the American Association for the Advancement of Science, Barnett said climate models based on air temperatures are weak because most of the evidence for global warming is not even there. "The real place to look is in the ocean," Barnett told a news conference. His team used millions of temperature readings made by the U.S. National Oceanic and Atmospheric Administration to calculate steady ocean warming. "The debate over whether or not there is a global warming signal is now over, at least for rational people," he said. The report was published one day after the United Nations Kyoto Protocol took effect, a 141-nation environmental pact the United States government has spurned for several reasons, including stated doubts about whether global warming is occurring and is caused by people. Barnett urged U.S. officials to reconsider. "Could a climate system simply do this on its own? The answer is clearly no," Barnett said. His team used U.S. government models of solar warming and volcanic warming, just to see if they could account for the measurements they made. "Not a chance," he said. And the effects will be felt far and wide. "Anywhere that the major water source is fed by snow ... or glacial melt," he said. "The debate is what are we going to do about it."
Greenland's ice cap, which contains enough ice to raise sea levels globally by 23 feet (7 meters), is starting to melt and could collapse suddenly, Curry said. Already freshwater is percolating down, lubricating the base and making it more unstable. Sharon Smith of the University of Miami found melting Arctic ice was taking with it algae that formed an important base of the food supply for a range of animals. And the disappearing ice shelves meant big animals such as walruses, polar bears and seals were losing their homes. "In 1997 there was a mass die-off of a bird called the short-tailed shearwater in the Bering Sea," Smith told the news conference. The birds, which migrate from Australia, starved to death for several years running when warmer waters caused a plankton called a coccolithophore to bloom in huge numbers, turning the water an opaque turquoise color. "The short-tailed shearwater couldn't see its prey," Smith said. | |||||||||||||||||||||||||||
Scientists now have evidence that changes are occurring in the Gulf Stream. Without the influence of the Gulf Stream and its two northern branches, the North Atlantic Drift and the Canary Current, the weather in Britain could be more like that of Siberia, which shares the same latitude. Cambridge University ocean physics professor Peter Wadhams points to changes in the waters of the Greenland Sea. Historically, large columns of very cold, dense water in the Greenland Sea, known as "chimneys," sink from the surface of the ocean to about 9,000 feet below to the seabed. As that water sinks, it interacts with the warm Gulf Stream current flowing from the south. But Wadhams says the number of these "chimneys" has dropped from about a dozen to just two. That is causing a weakening of the Gulf Stream, which could mean less heat reaching northern Europe. The activity in the Greenland Sea is part of a global pattern of ocean movement, known as thermohaline circulation, or more commonly the "global conveyor belt."
Wadhams and other scientists say the slowing of the Gulf Stream could contribute to other severe effects on the planet, such as the complete melting of the Arctic ice cap in the summer months. That could eliminate the habitat and lead to the extinction of Arctic wildlife, including the polar bear. Current predictions indicate that could happen as early as 2020 or as late as 2080. Scientists are getting other information about the disappearing ice cap from Alaskan Inuits. They report changes in where and when certain species of fish have been found, and in populations of seals and polar bears. Other oceanographers stress that Wadhams' findings are one piece of a very complex earthly puzzle. Terrence Joyce, senior scientist in the department of physical oceanography at Woods Hole Oceanographic Institution in Massachusetts, says it's important not to get alarmist, but instead to keep up a wide array of research. For a dramatic climate change to take place, "A whole bunch of pieces have to fit together. Certainly this is one of them. We need to keep paying attention, and people are doing that," he said. Woods Hole is conducting research that measures the path and temperature of some parts of the Gulf Stream. Such a dramatic climate change would not take place in five days, but rather several years, said Joyce.
| |||||||||||||||||||||||||||
![]() |
An
area of ice thought
to weigh almost 500 billion tonnes has broken off the Antarctic continent and
shattered into thousands of icebergs in one of the most dramatic examples yet
of the effects of climate change. Scientists from the British Antarctic Survey said the speed of the complete disintegration of the 200-metre thick, 3,250 square kilometre Larsen B iceshelf was "staggering". | ||||||||||||||||||||||||||
| A massive tabular iceberg adrift in the Weddell Sea off the Antarctic peninsula. Photo: British Antarctic Survey/C Gilbert, PA | |||||||||||||||||||||||||||
| The
collapse is believed to have dumped more ice into the Southern Ocean than
all of the previous half century's icebergs combined.
The then environment minister Michael Meacher said the collapse of the Larsen
B shelf was "a great cause of concern and a wake-up signal to the whole world".
| |||||||||||||||||||||||||||
| |||||||||||||||||||||||||||
|
The
US emits a quarter of the world's greenhouse gases and unless this is cut, the
combined efforts of all the other countries in favour of the Kyoto agreement will
not make much difference. |
A
frightening report published by the US National Academy of Sciences (NAS)
- the nation's most august scientific body, said: it is possible that the global
warming trend projected over the course of the next 100 years could, all of a
sudden and without warning, dramatically accelerate in just a handful of years
- forcing a qualitative new climatic regime which could undermine ecosystems and
human settlements throughout the world, leaving little or no time for plants,
animals and humans to adjust. The change in temperature forecast for the next
100 years is larger than any climate change on earth in more than 10,000 years.
The UN intergovernmental panel on climate change (IPCC - a body which examines evidence of climate change and predicts future temperature and sea-level rises) forecast that global average surface temperature is likely to rise by 1.4 to 5.8 degrees centigrade between now and 2100. To understand how significant this rise in temperature is likely to be, keep in mind that a 5 degrees centigrade increase in temperature between the last ice age and today resulted in much of the northern hemisphere of the planet going from being buried under thousands of feet of ice to being ice-free. How will all this affect us? Deep depressions with high winds are expected to dump up to 35% more rain on Britain, leading to more frequent flooding. The east of England is sinking at the same time as sea levels are rising. There will be more violent weather patterns, destabilisation and loss of habitats, migration northward of ecosystems, contamination of fresh water by salt water, massive forest dieback, accelerated species extinction and increased droughts. With forests decimated in vast fires and grasslands drying out and turning into dust bowls, wildlife could disappear. Diseases such as cholera and malaria, dengue and yellow fever, could spread uncontrollably beyond host ranges. More than 40 lakes high in the Himalayas, formed from rapidly melting glaciers, are expected to burst their banks in the next five years, sending millions of gallons of water and rock cascading on to settlements in the valleys below. | ||||||||||||||||||||||||||
| The
assumption that temperatures will climb steadily, more or less evenly distributed
over the course of the 21st century may be faulty - there is a possibility that
temperatures could rise suddenly in just a few years' time, creating a new climatic
regime virtually overnight. | |||||||||||||||||||||||||||
|
Kyoto
was meant to be only the beginning, leading to steeper targets by 2020. We need
to have cracked the problem by 2050 to avert disaster. | |||||||||||||||||||||||||||
| "If
we were to measure human accomplishments in terms of the sheer impact our activities
have had on the life of the planet, then we would sadly have to conclude that
global warming is our most significant accomplishment to date, albeit a negative
one". | |||||||||||||||||||||||||||
|
Politicians
are not solving the problem. We could save billions of tons of crude oil each
year if we all did something simple like get a solar hot water system. | |||||||||||||||||||||||||||
| Are
scientists certain about global warming? Yes, they are sure and the vast majority believe it is man made. Burning fossil fuels releases carbon dioxide. Intensive agriculture and rubbish tips release methane. The only uncertainty is the scale of the process and whether we can adapt to it. What can we do about it? Hope that man's ingenuity and technology comes to the rescue with hydrogen and solar power replacing fossil fuels to run transport and create electricity. Does the answer require us to fundamentally change our lifestyles? Not a lot. We need to cut fuel consumption, stop flying flowers and vegetables round the world when they can be produced locally, and recycle goods. These changes can be achieved without damaging lifestyles | |||||||||||||||||||||||||||
Giant trees 'to clear excess CO2' The scientist who coined the term "global warming" in the 1970s has proposed a radical solution to the problem of climate change. Wallace Broecker advocated millions of "carbon scrubbers" - giant artificial trees to pull CO2 from the air. Dr Broecker told the Hay literary festival in south-east Wales: "We've got an extremely serious problem. He added: "It's a race against time and we are just sort of crawling along at a slow pace." He said some 20 million of the scrubbing devices would be required to capture all the CO2 currently produced in the US.
After addressing the festival, Dr Broecker said that 60 million of the devices would be needed worldwide at an estimated cost of £ 303bn a year. The towers would be about 50ft high and 8ft in diameter, and use a special type of plastic to absorb the CO2. The gas would then be either liquefied under pressure and pumped underground or turned into a mineral. Dr Broecker said the most likely location for the towers would be desert areas of the planet. However, he admitted that such a project faced an uphill struggle. "If I were a betting man I would bet against it because I don't know if we have the political will to do it," he said. "But looking at countries like Germany and here in the UK the will is developing." He said the challenge was to get rapidly developing countries such as China, India and Brazil behind the idea.
| |||||||||||||||||||||||||||
|
Nuclear
is not the answer
Related
Links: | |||||||||||||||||||||||||||
| Read about Global Warming, Solar Power, Photovoltaics, how easy it is to build solar panels, and how to convert your home: | |||||||||||||||||||||||||||
![]() |
The
Revenge of Gaia: Why the Earth Is Fighting Back - and How We Can Still Save Humanity
(Hardcover) | ||||||||||||||||||||||||||
![]() |
The
Heat Is on : The Climate Crisis, the Cover-Up, the Prescription | ||||||||||||||||||||||||||
|
The
Antarctic Treaty: Recommendation of the 18th Consultative Meeting Held at Kyoto
11-22 April 1994 | |||||||||||||||||||||||||||
![]() | Hot
Water and Warm Homes from Sunlight Alan Gould | ||||||||||||||||||||||||||
|
| |||||||||||||||||||||||||||
![]() |
The
Solar Electric House | ||||||||||||||||||||||||||
![]() |
Cooking
With the Sun : How to Build and Use Solar Cookers | ||||||||||||||||||||||||||
![]() |
The
Passive Solar House | ||||||||||||||||||||||||||
| For Children | |||||||||||||||||||||||||||
| Kids take action: | |||||||||||||||||||||||||||
| |||||||||||||||||||||||||||
![]() |
Little
Factory | ||||||||||||||||||||||||||
![]() |
Amazing
Sun Fun Activities | ||||||||||||||||||||||||||