Friday, May 15, 2015
Is Australia's Great Barrier Reef 'In Danger'?
If I have the time I do sometimes read Australia's far-Left "New Matilda". I would like to start a blog that regularly demolished their articles -- perhaps to be called "Walzing New Matilda" -- but I have weightier matters to spend my time on. Anyway, the article below is up to its usual standard of presenting only half of the story. Balance is the Devil incarnate to Leftists.
Some scientists do say that the GBR has shrunk by 50% but the interesting question is why there has been any shrinkage at all. The Warmist below knows why, of course. It's because of global warming. Pesky that there has been no global warming for 18 years though. Can something that does not exist cause anything? They also seem to think that Richard Branson is a climate scientist. Enough said on that.
The key point, however, is that the reef does get heavily impacted by natural events such as the many cyclones that have hit North Queensland in recent years. Cyclones are very destructive of coral. HOWEVER, when we look at that storm destruction, we also find that corals grow back rapidly. While that happens, the GBR is in no "danger". Any changes are temporary. See here and here, for instance.
Warmists will say that the cyclones were caused by global warming but again I ask: Can something that does not exist cause anything?
Billionaire Richard Branson has urged the United Nations to list the World Heritage value of the Great Barrier Reef as ‘in danger’ after being approached by advocacy group 1Million Women.
While admitting the campaign may seem “counter intuitive”, Branson argues it is an effective way to “stop further irreversible damage” to the reef “and to protect it for generations to come”.
“Saying the Great Barrier Reef is ‘in danger’ could be just what it needs,” Branson wrote in a blog post yesterday.
The United Nations World Heritage Committee is set to make a decision on whether to change the listing of the reef at a meeting in Bonn, Germany, in June this year.
Like Branson, the UN has expressed concern that port developments and coal ships set to service Australia’s largest ever coal mine, which the federal government approved last year, will further damage the reef.
The Great Barrier Reef has already lost half of its coral cover in the last three decades, and it faces further threats from the Crown of Thorns Starfish and increased agriculture run-off.
In 2013, a federal government report noted that 24 out of 41 attributes which make up the ‘Outstanding Universal Value’ of the reef under the World Heritage Convention are deteriorating.
But the greatest threat to the reef, according to government scientists, is climate change. “The reef’s plight, like many others, is unbearably sad,” Branson said. “It is being totally overwhelmed by climate change impacts through a destructive combination of heat-driven coral bleaching, ocean acidification and tropical storms.”
Despite climate change being the greatest threat to the reef, a recent Australian Government plan designed to guide conservation efforts for the next 35 years and address UN concerns made next to no mention of the risk to the reef from rising emissions.
On Thursday, the United Nations warned that for the first time in millions of years the concentration of carbon dioxide in the earths atmosphere exceeded 400 parts per million.
The Greens environment spokesperson, Larissa Waters, said on Wednesday that she doesn’t “think the government has done enough policy-wise to avert the threat of a world heritage in danger listing for the Great Barrier Reef”.
“Which is an absolute tragedy,” she said, “because we’re talking about one of the seven wonders of the world.”
“The foremost World Heritage Committee has for the past four years now said to Australia ‘slow down, you’re on this path of industrialisation, we’re worried about the future of the reef, your own scientists are worried about the future of your reef, what are you going to do about it?”
“And the government has consistently thumbed its nose at the key recommendations, and it’s made some changes around the edges.”
Waters said she hopes the reef is not listed as ‘in danger’, despite the fact it is “in serious jeopardy”.
Yesterday, The World Wildlife Fund has released a ‘to do’ list, lobbying the government to do more than is proposed in its ‘Reef 2050’ plan.
At least one federal MP is likely to be unimpressed with these recent developments.
George Christensen MP, whose electorate of Dawson takes in part of the Great Barrier Reef, is standing by the government’s “exemplary document”.
The outspoken backbencher recently voiced his outrage at “eco-traitors” who are committing the “treason” of advocating for an ‘in danger’ listing.
“These extreme greens act like Wormtongue from The Lord of the Rings, flying overseas and whispering in the ears of the decision-makers and diplomats who have anything to do with UNESCO and the World Heritage Committee, poisoning their minds on the state of the reef,” Christensen said.
“They belong to groups such as Greenpeace, the Australian Marine Conservation Society, Friends of the Earth, Get Up, and the Environmental Defenders Office.”
Thursday, May 14, 2015
Parental environment mediates impacts of increased carbon dioxide on a coral reef fish
Fish adapt rapidly to climate change -- within one generation
Gabrielle M. Miller et al.
Carbon dioxide concentrations in the surface ocean are increasing owing to rising CO2 concentrations in the atmosphere1. Higher CO2 levels are predicted to affect essential physiological processes of many aquatic organisms2, 3, leading to widespread impacts on marine diversity and ecosystem function, especially when combined with the effects of global warming4, 5, 6. Yet the ability for marine species to adjust to increasing CO2 levels over many generations is an unresolved issue. Here we show that ocean conditions projected for the end of the century (approximately 1,000 μatm CO2 and a temperature rise of 1.5–3.0 °C) cause an increase in metabolic rate and decreases in length, weight, condition and survival of juvenile fish. However, these effects are absent or reversed when parents also experience high CO2 concentrations. Our results show that non-genetic parental effects can dramatically alter the response of marine organisms to increasing CO2 and demonstrate that some species have more capacity to acclimate to ocean acidification than previously thought.
Nature Climate Change 2, 858–861 (2012) doi:10.1038/nclimate1599