Showing posts with label Antarctica. Show all posts
Showing posts with label Antarctica. Show all posts

Wednesday, November 07, 2012

"By leaves we live"

Ice sheets: A new study confirms with greater accuracy than ever before that world's major ice sheets are melting at an accelerating rate. This is why sea level rise is happening 60% faster than was expected in the most recent IPCC report.

Coal boom: 1200 new coal plants planned. Three quarters of the new plants are to be located in China and India. A breakdown of the countries is available here. Though India's expansion plans need to be taken with a grain or two of salt.

Extinction is forever: Tim Flannery reflects on the challenges facing Australian biodiversity and suggests that the current approach isn't working. With a reply from David Bowman. Perhaps how do we triage conservation priorities?

Coal seam gas: Recent measurements (yet to be peer reviewed) suggest coal seam gas production may have significant "fugitive emissions" of methane that render the claims of the gas industry to be somewhat less bad for the climate questionable. Some have suggested that natural gas is methadone to coal's heroin.

Fracking: Stories from the front line in the US. In the UK, academics have just advised the government that it is "categorically clear" that pursuing a shale gas dominated energy strategy is incompatible with legislated UK climate targets. But it looks like they are going to do it anyway.

Big cats, small space: Only 25% of the original African savannah remains undeveloped, leaving less and less room for the iconic megafauna that call it home. Lion numbers are plummeting and they may soon be listed as endangered.

IPCC: The IPCC has been repeatedly wrong on climate change, frequently underestimating the rate and impacts of change.
Note that the first link makes an embarrassingly obvious mistake in its opening claim, confusing carbon with carbon dioxide and so getting the numbers hopelessly muddled.

Trees: All around the world, ancient trees are dying at an alarming rate.

Sunday, September 05, 2010

If the world is going to hell, why are humans doing so well?

Scientific American: If the world is going to hell, why are humans doing so well?. This is known as the environmentalist's paradox.

While the precise contribution of anthropocentric climate change to Pakistan's devastating floods continues to be debated, they were indeed made worse by human actions. And the toll continues to rise. You can give online here (or in many other places).

Oil Drum: Nine challenges for renewable energy.

Nature: Not all disruptions associated with climate change involve things getter hotter. A recent anomalous cold snap in Bolivia has contributed to what is possibly the largest short-term ecological disaster in its history.

Water stress in western USA.

New mega-dam in Brazil looks set to go ahead.

The archeological consolations of drought: hundreds of ancient sites revealed in England during a dry summer.

Ecopsychology: BP Gulf disaster and despair.

ABC: West Antarctic ice shelf may be "much less stable than previously thought".

Saturday, August 21, 2010

Mainly bad news

A few things our new government largely ignores*

Total disaster: "Scientists estimate that 150-200 species of plant, insect, bird and mammal become extinct every 24 hours. This is nearly 1,000 times the "natural" or "background" rate and, say many biologists, is greater than anything the world has experienced since the vanishing of the dinosaurs nearly 65m years ago. [...] The loss of biodiversity compounds poverty. Destroy your nature and you increase poverty and insecurity."

Big coal gets bigger: a bet that there will be no serious cost placed on carbon emissions.

Mangrove losses worse than thought. Less than 7% of remaining mangroves are protected.

Antarctica ought to be World Heritage listed.

Conservative conservation in the UK: a false dawn?

Mackerel wars: and Mackerel are often considered something a "success story" in the prevention of overfishing.

Scientists claim almost 80% of Gulf spill is still in the water, contradicting the government claim that most has been skimmed, burned, collected, evaporated or digested by microbes. See also here.

Corals dying: coral reefs are among the most threatened ecosystems on the planet. Rising ocean temperatures, falling oxygen levels, rising acidity, falling fisheries, rising plastics - the bad news is pretty bad for corals.

Consumerism means "Earth Overshoot Day" arrives earlier every year. This year, the date on which we use all the resources that can be replenished in a year will be 27th September.

Desertification: "An area the size of Greece, or of Nepal, is lost every year to desertification and soil erosion, the world body said, equivalent to $42-billion in annual income."

The wake-up call: when my alarm goes, I usually hit snooze and roll over.

Now here's one biofuel I can get behind: made from whisky byproducts, it reduces the ecological footprint of water of life by reusing waste materials.

A small piece of "good" news: plummeting levels of phytoplankton might inhibit hurricane formation.

Priceless collection of crop biodiversity "saved" by Twitter. I'm not entirely sure whether this is good news (Russians are considering a halt to gross stupidity) or bad news (it took Twitter to achieve this).
*This post was scheduled a few days ago and this claim is more or less true on either outcome.