|

Tuesdays with Turtles – Climate change and nesting patterns

Turns out that in Guyana, nesting patterns are changing. Different types of sea turtles are showing up, and earlier than they used to. The earlier part can be explained by climate change, but the species distribution? I am sure there are other factors involved including habitat loss, poaching, etc. Anyway, interesting story.

Stabroek News

The changing nesting patterns of endangered sea turtles in Guyana, is alerting environmentalists to the impact of climate change on these marine animals.

The shell beaches in Region One have hosted thousands of nesting turtles over the years, and conservationists have been endeavouring to protect the turtles from heavy domestic use and from being traded.

Project Coordinator of the Guyana Marine Turtle Conservation Society (GMTCS) Michelle Kalamandeen told Stabroek News recently that climate change is affecting the sea turtle population.

According to Kalamandeen, in the 1960s the Hawksbill (critically endangered) and the Olive-Ridley (endangered) were our main nesting turtles, now the green turtles (endangered) and the leatherbacks (critically endangered) are mostly coming to nest on Guyana’s shores. The Pacific Leatherback is said to be now extinct and the Atlantic Leatherback is facing extinction.

The change in the time period for nesting in Guyana, she said, may also be a significant sign.

Usually sea turtles nest in Guyana from March to August every year. However, for the last three to four years, says Kalamandeen, the nesting pattern has shifted from mid-January to mid-July. This may have a significant impact on the hatchlings as food availability may be an issue for them.

Similar Posts

  • Canada's Environmental Corpus Callosum malfunction

    One of my first impressions on moving to Victoria was the high environmental consciousness of the people here. The obvious markers of environmental consciousness such as recycling, composting, organic food consumption, local food consumption, small car driving, and most importantly, pride at being environmentally conscious are off the charts here  (and I am  most definitely  one of those people as well!).

    My second impression was that a country with such a resource driven economy can’t possibly live up to what its citizens think it is doing. And I was right. The country as a whole performs abysmally. Canada vs. the OECD (a report produced by my very hometown University of Victoria) compares Canada’s performance vs. the OECD on a number of environmental parameters. It is shocking. The picture is painted of an inefficient economy whose consumption of major resources and pollution indicators are growing at a time they should be dropping. For example:

    Canada is among the three worst countries on nine indicators (per capita greenhouse gas emissions, sulphur dioxide emissions, carbon monoxide emissions, volatile organic compound emissions, water consumption, energy consumption, energy efficiency, volume of timber logged and generation of nuclear waste);

    Canada’s economy is inefficient, in that we use much more energy and generate much more pollution to produce a given amount of goods and services relative to our industrial competitors, including 33% more energy than the United States per unit of GDP; and

    Canada’s performance on most environmental indicators continues to worsen

    So, not only are things bad, they’re getting worse, but the people don’t seem to notice. Massive corpus callosum1 malfuction?

    BTW, this is what happens to people when their corpus callosum is removed.

    [youtube=’http://www.youtube.com/watch?v=ZMLzP1VCANo’]

    Once this theme crystallized in my head, I went searching for earlier work that would reinforce my conclusion and came upon this book Unnatural Law – Rethinking Canadian Environmental Law and Policy. From the First chapter:

    Is Canada an environmental leader or an environmental laggard? Is Canada contributing to solving environmental challenges or are we exacerbating these problems?

    Great, a book that reinforces my frame in the very first paragraph! I’ll let you know after I finish reading the book (helpfully available from my local library and written by a former ED for the SIerra Legal Defence Fund (now known as Ecojustice) and who lives on Pender Island, a few islands away from where I live! Promises to be an interesting and illuminating read.

    1Corpus Callosum = Part of brain that connects the two hemispheres.

  • Hansen on understating sea level rise due to climate change

    Hansen, the grandfather of all climate research has an essay today in the open access journal Environmental Research Letters arguing that scientists are not communicating the seriousness of sea level rise. And, it is open access, so, no kidney sale required!

    Scientific reticence and sea level rise

    I suggest that a `scientific reticence’ is inhibiting the communication of a threat of a potentially large sea level rise. Delay is dangerous because of system inertias that could create a situation with future sea level changes out of our control. I argue for calling together a panel of scientific leaders to hear evidence and issue a prompt plain-written report on current understanding of the sea level change issue.

    In this paper, Hansen reviews a number of recent studies that point to positive feedback in ice melting (remember, poitive feedback, good for morale, not good for climate change). Hansen then points out that due to these feedback mechanisms, sea level rise is non-linear. His thesis is that all this information is known to most climate scientists, and to a lot of people who maintain even a cursory interest in the matter.

    He finishes with a call to action.

    There is, in my opinion, a huge gap between what is understood about human-made global warming and its consequences, and what is known by the people who most need to know, the public and policy makers. The IPCC is doing a commendable job, but we need something more. Given the reticence that the IPCC necessarily exhibits, there need to be supplementary mechanisms. The onus, it seems to me, falls on us scientists as a community.

    Important decisions are being made now and in the near future. An example is the large number of new efforts to make liquid fuels from coal, and a resurgence of plans for energy-intensive `cooking’ of tar-shale mountains to squeeze out liquid hydrocarbon fuels. These are just the sort of actions needed to preserve a BAU greenhouse gas path indefinitely. We know enough about the carbon cycle to say that at least of the order of a quarter of the CO2 emitted in burning fossil fuels under a BAU scenario will stay in the air for an eternity, the latter defined practically as more than 500 years. Readily available conventional oil and gas are enough to take atmospheric CO2 to a level of the order of 450 ppm.

    In this circumstance it seems vital that we provide the best information we can about the threat to the great ice sheets posed by human-made climate change. This information, and appropriate caveats, should be provided publicly, and in plain language. The best suggestion I can think of is for the National Academy of Sciences to carry out a study, in the tradition of the Charney and Cicerone reports on global warming. I would be glad to hear alternative suggestions.

    Do we need another study? As we wait for the National Academy of Sciences to conduct a study on how best to communicate the danger of sea level rise, many more villages in India and Bangladesh will go under the sea. Apparently, the sea cannot wait for the best communication strategies. It communicates the only way it can, directly!!

    Technorati Tags: ,

  • |

    On Google map, everythings back to normal after Katrina | Chron.com – Houston Chronicle

    TBTB (Too busy to blog), but this struck me as very weird.

    On Google map, everythings back to normal after Katrina | Chron.com – Houston Chronicle

    Google’s popular map portal has replaced post-Hurricane Katrina satellite imagery with pictures taken before the storm, leaving locals feeling like they’re in a time loop and even fueling suspicions of a conspiracy.

    Scroll across the city and the Mississippi Gulf Coast, and everything is back to normal: Marinas are filled with boats, bridges are intact and parks are filled with healthy trees.

    “Come on,” said an incredulous Ruston Henry, president of the economic development association in New Orleans’ devastated Lower 9th Ward. “Just put in big bold this: ‘Google, don’t pull the wool over the world’s eyes. Let the truth shine.’ “

    I am sure there is the usual, non-conspiracy involving explanation to all of this, and I don’t know enough about NO geography to even verify this fact, but an explanation would be nice!

    Update:

    Turns out there was a major upgrade of the imagery on the 29th of March. Still does not explain the above…

  • Liquid Coal, Hitler's Fuel!

    Congress weighs coal fuels, carbon questions linger – Apr. 23, 2007

    The technology, developed in coal-rich Germany in the 1920s and used heavily by the Nazis in World War II, involves partly burning coal to turn it into a gas, then using a catalyst, usually a metal, to make it a liquid.

    The basic premise of liquid coal (using the wonderful Fischer-Tropsch Reaction) is that “plentiful and easily available” coal is converted into diesel that can be used for automobiles. Liquid coal is yet another wonderful distraction in the quest for clean energy sources.

    The attraction of using a plentiful domestic energy source is obvious. It would help cut our reliance on oil, about a quarter of which comes from the Middle East and Venezuela.

    It also keeps money stateside, flowing to coal miners instead of countries with links to terrorists, which explains why the coalition’s members include several labor unions.

    mountaintop_phixr.jpg
    You mean, you willl do this to every coal mining town just so you don’t have to increase fuel efficiency by 25% and avoid “terrorist” oil? Jeez, and this casual assumption of “if we don’t buy their oil, terrorism will decrease”. Patriotism and blatant fear mongering can be used to sell anything, apparently. Coal mining is one of the most destructive and harmful operations you can imagine. Here’s a short summary (LINK)

    It is difficult to explain the scope and impact of mountain top removal to people who have not seen it. Some sites cover three and four thousand acres. Millions of cubic feet of land are blasted away by explosive charge to get at the thin seams of coal underneath the mountain tops. Trees, rocks, soil-in short, everything but the coal-is considered “overburden.” Land is devastated, and afterwards the ground must be compacted so hard to stabilize it that nothing but scrub grasses will grow. Rains rush off the denuded mountain tops at an alarming rate.

    Of course, like all other carbon rich fuel sources, carbon sequestration remains a must for any possibility that we can see a decrease in carbon emissions coupled to an increase in carbon fuel use.

    Henry said that “carbon storage” – an untested technology where about half the carbon dioxide in coal is removed and injected underground – can make liquid coal so that it emits 60 percent less carbon dioxide than gasoline.

    “This statement is total garbage,” said Pete Altman, coal campaign director at the National Environmental Trust, saying the study Henry was referring to compared a hybrid diesel engine to a gasoline engine

    So we’re willing to go to greatly increased carbon emissions, devastated country side, increased water pollution, air pollution, mining deaths, etc. just so we don’t increase fuel efficiency by 25%? Wow, priorities!!

    The bill is expected to make it to the Senate floor in the next few weeks, and both Democrat and Republican staffers say a Republican sponsored amendment allowing for liquid coal is likely.

    Other bills provide loan guarantees for companies building coal-to-liquid plants, which typically cost $3 billion to $5 billion apiece, as well as guaranteed price support if oil falls below $40 a barrel.

    It seems clear the industry needs government help to succeed. Lawmakers have to decide if they are willing to fund a fuel that appears to do little to cut greenhouse gases.

    I am sure lawmakers will make it happen as long as their lobbyists want to make it happen, if it means subsidies, relaxation of pollution rules, and other such shenanigans, so be it.

    Go Solar!.

    Note: the blog Environmental Action follows the liquid coal story very closely and had a post on this very article. Reading this blog, you will find that the great savior Barack Obama is also a liquid coal acolyte (It’s that whole midwestern pandering to coal and ethanol!)

  • | |

    Indian Parliament Discusses Climate Change

    India stresses on Kyoto standards-India-The Times of India

    The discussion on global warming in Parliament will end with the statement of environment minister A Raja, possibly on Monday. He is bound to restate the country’s position on climate change in the international arena — that countries must bear “a common but differentiated responsibility” for climate change, a phrase that is the central pin of the Kyoto Protocol.

    De-jargonised, it means, while every country is adding to the problem, there are some that are more responsible than others, and should, therefore, bear the burden and costs of cleaning up more than the smaller culprits

    More highlights…

    The US, between 1950-2003, emitted 10 times more carbon dioxide than India did. Europe emitted 8.5 times more. Yet US and Australia, two of the biggest emitters of greenhouse gases, have refused to ratify the Kyoto Protocol (which asks developed countries to reduce their emissions) on the pretext that developing countries like India and China are not undertaking emission cuts.

    Worse still, if one looks at per capita emissions from different countries, which is a more equitable way of calculating emissions if one was to go by the principle that each person has as much right to the atmosphere as another, then India ranks a mere 120 compared to US which ranks 6 and Australia 10 on the culprits’ list. This is taking the emission levels of 2003.

    Well, they are right, and they are wrong too. The developed world has a lot to more to cut back on and should make the bulk of the cuts. But India and China also need to grow using current state of the art knowledge, not using the 1950s coal intensive, energy inefficient model of increasing supply without paying attention to demand. We have also come to realize that IPCC reports, due to their consensual nature, are conservative. So, they will tend to understate the effects of climate change and overstate the costs. It may not be as expensive in India and China as long as attention is being paid to hw the infrastructure is being developed.

  • Goodbye Conventional Coal, for now.

    In a move that signals the start of the our clean energy future, the Environmental Protection Agency’s Environmental Appeals Board EAB ruled today EPA had no valid reason for refusing to limit from new coal-fired power plants the carbon dioxide emissions that cause global warming. The decision means that all new and proposed coal plants nationwide must go back and address their carbon dioxide emissions.

    via Sierra Club: Email – Ruling: Coal Plants Must Limit CO2

    This is huuuuuuuuuuge.