[News] from [guardian.co.uk]
[Environmewnt > Marine life]
Ocean acidification rates pose disaster for marine life, major study shows
Report launched from leading marine scientists at Copenhagen summit shows seas absorbing dangerous levels of CO2
Severin Carrell
guardian.co.uk, Thursday 10 December 2009 10.52 GMT Article history
The world's oceans are becoming acidic at a faster rate than at any time in the last 55m years, threatening disaster for marine life and food supplies across the globe, delegates at the UN climate conference in Copenhagen have been warned.
A report by more than 100 of Europe's leading marine scientists, released at the climate talks this morning, states that the seas are absorbing dangerous levels of carbon dioxide as a direct result of human activity. This is already affecting marine species, for example by interfering with whale navigation and depleting planktonic species at the base of the food chain.
Ocean acidification – the facts says that acidity in the seas has increased 30% since the start of the industrial revolution. Many of the effects of this acidification are already irreversible and are expected to accelerate, according to the scientists.
The study, which is a massive review of existing scientific studies, warns that if CO2 emissions continue unchecked many key parts of the marine environment – particularly coral reefs and the algae and plankton which are essential for fish such as herring and salmon – will be "severely affected" by 2050, leading to the extinction of some species.
Dr Helen Phillips, chief executive of Natural England, which co-sponsored the report, said: "The threat to the delicate balance of the marine environment cannot be overstated - this is a conservation challenge of unprecedented scale and highlights the urgent need for effective marine management and protection."
Although oceans have acidified naturally in the past, the current rate of acidification is so fast that it is becoming extremely difficult for species and habitats to adapt. "We're counting it in decades, and that's the real take-home message," said Dr John Baxter a senior scientist with Scottish Natural Heritage, and the report's co-author. "This is happening fast."
The report, published by the EU-funded European Project on Ocean Acidification, a consortium of 27 research institutes and environment agencies, states that the survival of a number of marine species is affected or threatened, in ways not recognised and understood until now. These species include:
> whales and dolphins, who will find it harder to navigate and communicate as the seas become "noisier". Sound travels further as acidity increases. Noise from drilling, naval sonar and boat engines is already travelling up to 10% further under water and could travel up to 70% further by 2050.
> brittle stars (Ophiothrix fragilis) produce fewer larvae because they need to expend more energy maintaining their skeletons in more acid seas. These larvae are a key food source for herring.
> tiny algae such as Calcidiscus leptoporus which form the basis of the marine food chain for fish such as salmon may be unable to survive.
> young clownfish will lose their ability to "smell" the anemone species that they shelter in. Experiments show that acidification interferes with the species' ability to detect the chemicals that give "olfactory cues".
The report predicts that the north Atlantic, north Pacific and Arctic seas – a crucial summer feeding ground for whales - will see the greatest degree of acidification. It says that levels of aragonite, the type of calcium carbonate which is essential for marine organisms to make their skeletons and shells, will fall worldwide. But because cold water absorbs CO2 more quickly, the study predicts that levels of aragonite will fall by 60% to 80% by 2095 across the northern hemisphere.
"The bottom line is the only way to slow this down or reverse it is aggressive and immediate cuts in CO2," said Baxter. "This is a very dangerous global experiment we're undertaking here."
Written for policy makers and political leaders, the document is being distributed worldwide, with 32,000 copies printed in five major languages including English, Chinese and Arabic. Every member of the US congress, now struggling to agree a binding policy on CO2 emissions, will be sent a copy.
Congressman Brian Baird, a Democrat representative from Washington state, who championed a bill in Congress promoting US research on ocean acidification, said these findings would help counter climate change sceptics, since acidification was easily and immediately measurable.
"The consequences of ocean acidification may be every bit as grave as the consequences of temperature increases," he said. "It's one thing to question a computer extrapolation, or say it snowed in Las Vegas last year, but to say basic chemistry doesn't apply is a real problem [for the sceptics]. I think the evidence is really quite striking."
[Environment > Copenhagen Climate change conference 2009]
Ban Ki-moon reasserts leadership in Copenhagen climate talks
Danish text raised 'trust issues' between rich and poor countries but won't derail deal, says UN secretary-general
Suzanne Goldenberg, US environment correspondent, New York
guardian.co.uk, Wednesday 9 December 2009 16.57 GMT Article history
The United Nations secretary-general, Ban Ki-moon, has re-asserted ownership over the Copenhagen climate change meeting after the "trust issues" between rich and poor nations were exposed by a leaked draft agreement. He said he was confident of getting a deal for immediate action on global warming.
In an interview with the Guardian, Ban said he believed the negotiations remained on course for a strong deal, sweetened with the early release of
$10bn in aid to poor countries and set down in international law within six months.
He was also adamant that deal would hinge on the core elements of the Kyoto protocol, which developing countries feared was being sabotaged in the so-called Danish text leaked to the Guardian yesterday. The text, prepared in secret by the Danish hosts, was interpreted by developing nations as favouring the rich nations they hold responsible for global warming.
The UN chief sees a climate change deal as his legacy, and has insisted on drawing world leaders into the negotiations, betting they have the authority to make the hard choices on the environmental future for their countries. But some have criticised negotiations that are going on outside the official UN forum.
Ban was determined to set a firm six-month deadline for any political deal agreed in Copenhagen to be given the full force of international law. The timing mirrors an appeal by the UK prime minister, Gordon Brown, in the Guardian this week. The push for a six-month deadline indicates growing unease about allowing the climate change negotiations to drift, once the summit is over.
The crucial element of reaching an agreement was $10bn in short-term aid for the countries that would suffer the worst consequences of climate change. "We have been talking a lot most recently with developing countries and small island developing states. They are the most concerned countries and they seem to agree to this idea of $10bn," he said.
Ban admitted that the uproar over the leaked Danish text had exposed the distrust between the industrialised and developing countries. But he downplayed its repercussions, noting he had been in constant contact with the Danish prime minister, Lars Løkke Rasmussen, and that he had been easing matters over with developing countries. "I have been very consciously engaging with developing countries," he said. "Even if there have been some trust issues, we have been bridging this gap as much as we can. This is what I am going to continue to do."
He was also adamant that the essence of the Kyoto agreement — that industrialised countries take responsibility for global warming — would survive. "What is know as common but differentiated responsibility principle will be maintained in Copenhagen," Ban said.
Next week brings the climate change negotiations to their moment of truth, with the arrival of more than 100 world leaders in Copenhagen. Ban said he was waiting for the rich industrialised countries to promise steeper emissions cuts. But he specifically ruled out further action from America because of Barack Obama's difficulties with Congress. "Now we are approaching this end-game and I am sure people will come out with more serious targets," he said. "Not all developed countries have come out with ambitious targets."
But in an important shift, Ban acknowledged that rapidly emerging economies like China, India, Brazil and Indonesia, which will be the major sources of future emissions, no longer slot neatly into the Kyoto view of the world. Kyoto divided the world into the industrialised countries, which were responsible for global warming, and the developing countries, which would suffer its worst effects.
"China, India and South Korea have made it quite clear that they will have domestic regulations," he said. "This is quite important even if they will not be internationally bound I am sure they will be domestically bound."
[Environmewnt > Marine life]
Ocean acidification rates pose disaster for marine life, major study shows
Report launched from leading marine scientists at Copenhagen summit shows seas absorbing dangerous levels of CO2
Severin Carrell
guardian.co.uk, Thursday 10 December 2009 10.52 GMT Article history
The world's oceans are becoming acidic at a faster rate than at any time in the last 55m years, threatening disaster for marine life and food supplies across the globe, delegates at the UN climate conference in Copenhagen have been warned.
A report by more than 100 of Europe's leading marine scientists, released at the climate talks this morning, states that the seas are absorbing dangerous levels of carbon dioxide as a direct result of human activity. This is already affecting marine species, for example by interfering with whale navigation and depleting planktonic species at the base of the food chain.
Ocean acidification – the facts says that acidity in the seas has increased 30% since the start of the industrial revolution. Many of the effects of this acidification are already irreversible and are expected to accelerate, according to the scientists.
The study, which is a massive review of existing scientific studies, warns that if CO2 emissions continue unchecked many key parts of the marine environment – particularly coral reefs and the algae and plankton which are essential for fish such as herring and salmon – will be "severely affected" by 2050, leading to the extinction of some species.
Dr Helen Phillips, chief executive of Natural England, which co-sponsored the report, said: "The threat to the delicate balance of the marine environment cannot be overstated - this is a conservation challenge of unprecedented scale and highlights the urgent need for effective marine management and protection."
Although oceans have acidified naturally in the past, the current rate of acidification is so fast that it is becoming extremely difficult for species and habitats to adapt. "We're counting it in decades, and that's the real take-home message," said Dr John Baxter a senior scientist with Scottish Natural Heritage, and the report's co-author. "This is happening fast."
The report, published by the EU-funded European Project on Ocean Acidification, a consortium of 27 research institutes and environment agencies, states that the survival of a number of marine species is affected or threatened, in ways not recognised and understood until now. These species include:
> whales and dolphins, who will find it harder to navigate and communicate as the seas become "noisier". Sound travels further as acidity increases. Noise from drilling, naval sonar and boat engines is already travelling up to 10% further under water and could travel up to 70% further by 2050.
> brittle stars (Ophiothrix fragilis) produce fewer larvae because they need to expend more energy maintaining their skeletons in more acid seas. These larvae are a key food source for herring.
> tiny algae such as Calcidiscus leptoporus which form the basis of the marine food chain for fish such as salmon may be unable to survive.
> young clownfish will lose their ability to "smell" the anemone species that they shelter in. Experiments show that acidification interferes with the species' ability to detect the chemicals that give "olfactory cues".
The report predicts that the north Atlantic, north Pacific and Arctic seas – a crucial summer feeding ground for whales - will see the greatest degree of acidification. It says that levels of aragonite, the type of calcium carbonate which is essential for marine organisms to make their skeletons and shells, will fall worldwide. But because cold water absorbs CO2 more quickly, the study predicts that levels of aragonite will fall by 60% to 80% by 2095 across the northern hemisphere.
"The bottom line is the only way to slow this down or reverse it is aggressive and immediate cuts in CO2," said Baxter. "This is a very dangerous global experiment we're undertaking here."
Written for policy makers and political leaders, the document is being distributed worldwide, with 32,000 copies printed in five major languages including English, Chinese and Arabic. Every member of the US congress, now struggling to agree a binding policy on CO2 emissions, will be sent a copy.
Congressman Brian Baird, a Democrat representative from Washington state, who championed a bill in Congress promoting US research on ocean acidification, said these findings would help counter climate change sceptics, since acidification was easily and immediately measurable.
"The consequences of ocean acidification may be every bit as grave as the consequences of temperature increases," he said. "It's one thing to question a computer extrapolation, or say it snowed in Las Vegas last year, but to say basic chemistry doesn't apply is a real problem [for the sceptics]. I think the evidence is really quite striking."
[Environment > Copenhagen Climate change conference 2009]
Ban Ki-moon reasserts leadership in Copenhagen climate talks
Danish text raised 'trust issues' between rich and poor countries but won't derail deal, says UN secretary-general
Suzanne Goldenberg, US environment correspondent, New York
guardian.co.uk, Wednesday 9 December 2009 16.57 GMT Article history
The United Nations secretary-general, Ban Ki-moon, has re-asserted ownership over the Copenhagen climate change meeting after the "trust issues" between rich and poor nations were exposed by a leaked draft agreement. He said he was confident of getting a deal for immediate action on global warming.
In an interview with the Guardian, Ban said he believed the negotiations remained on course for a strong deal, sweetened with the early release of
$10bn in aid to poor countries and set down in international law within six months.
He was also adamant that deal would hinge on the core elements of the Kyoto protocol, which developing countries feared was being sabotaged in the so-called Danish text leaked to the Guardian yesterday. The text, prepared in secret by the Danish hosts, was interpreted by developing nations as favouring the rich nations they hold responsible for global warming.
The UN chief sees a climate change deal as his legacy, and has insisted on drawing world leaders into the negotiations, betting they have the authority to make the hard choices on the environmental future for their countries. But some have criticised negotiations that are going on outside the official UN forum.
Ban was determined to set a firm six-month deadline for any political deal agreed in Copenhagen to be given the full force of international law. The timing mirrors an appeal by the UK prime minister, Gordon Brown, in the Guardian this week. The push for a six-month deadline indicates growing unease about allowing the climate change negotiations to drift, once the summit is over.
The crucial element of reaching an agreement was $10bn in short-term aid for the countries that would suffer the worst consequences of climate change. "We have been talking a lot most recently with developing countries and small island developing states. They are the most concerned countries and they seem to agree to this idea of $10bn," he said.
Ban admitted that the uproar over the leaked Danish text had exposed the distrust between the industrialised and developing countries. But he downplayed its repercussions, noting he had been in constant contact with the Danish prime minister, Lars Løkke Rasmussen, and that he had been easing matters over with developing countries. "I have been very consciously engaging with developing countries," he said. "Even if there have been some trust issues, we have been bridging this gap as much as we can. This is what I am going to continue to do."
He was also adamant that the essence of the Kyoto agreement — that industrialised countries take responsibility for global warming — would survive. "What is know as common but differentiated responsibility principle will be maintained in Copenhagen," Ban said.
Next week brings the climate change negotiations to their moment of truth, with the arrival of more than 100 world leaders in Copenhagen. Ban said he was waiting for the rich industrialised countries to promise steeper emissions cuts. But he specifically ruled out further action from America because of Barack Obama's difficulties with Congress. "Now we are approaching this end-game and I am sure people will come out with more serious targets," he said. "Not all developed countries have come out with ambitious targets."
But in an important shift, Ban acknowledged that rapidly emerging economies like China, India, Brazil and Indonesia, which will be the major sources of future emissions, no longer slot neatly into the Kyoto view of the world. Kyoto divided the world into the industrialised countries, which were responsible for global warming, and the developing countries, which would suffer its worst effects.
"China, India and South Korea have made it quite clear that they will have domestic regulations," he said. "This is quite important even if they will not be internationally bound I am sure they will be domestically bound."