Must We Hack Our Planet’s Atmosphere?
The failure of recent efforts to curb greenhouse-gas emissions has built some momentum toward expanding research on geoengineering options. Although everything possible must be done to shift to a sustainable and energy-efficient economy – along with changing to simple life-styles and putting a cap on the world’s population – all this will not be enough to eliminate the danger of runaway climate change.
Somehow, we have to find a safe way to remove the huge amount of excess carbon dioxide in our atmosphere. To analogize, diet and medicine alone won’t cure our planet; surgery will also be required. Too much CO2 in our atmosphere not only contributes to global heating, sea-level rise, more severe storms and desertification; it has also caused a 30% increase in ocean acidification, and this too threatens the life of everything on Earth.
Rate of ocean acidification the fastest in 65 million years
A new study says the seas are acidifying ten times faster today than 55 million years ago when a mass extinction of marine species occurred. And, the study concludes, current changes in ocean chemistry due to the burning of fossil fuels may portend a new wave of die-offs.
Cleaning Up the Excess CO2
The other way to reduce the air’s excess CO2 is to unbalance the carbon cycle, typically by preventing some of the CO2 captured by photosynthesis from going back into the air when cells decompose. One has to stash dead biomass where the air can’t get to it. While sealed landfills help, it is only the ocean depths that would appear to have the capacity to draw down all of the CO2 that we have added since 1750.
A Holiday Gift from Climate Scientist James Hansen
For new inspiration and knowledge, we would most like to recognise James Hansen, who with the publication of his book Storms of My Grandchildren has made climate science accessible and interesting to anyone with a high school education.
State of Climate Science: Videos of US Senate Select Committee Hearing
With the international climate change talks in Copenhagen fast approaching, there is real urgency to reach diplomatic consensus on a planetary solution. In a hearing hosted by Chairman Edward J. Markey on December 2, 2009, the US Senate Select Committee explored with climate scientists from the Obama administration, Dr. John Holdren and Dr. Jane Lubchenco, the urgent, consensus view on our planetary problem: that global warming is real, and the science indicates that it is getting worse.
Australian Professor Writes of the Likelihood of Runaway Climate Change
Rather than decarbonising, the world is carbonising at an unprecedented rate, and it is doing so at precisely the time we know we have to stop it. 2.5 degrees Celsius is likely by the end of the century in spite of our childlike belief that climate change can be averted; the cost will prove incalculable.
Time to Take Our Foot Off the Pedal and Reduce CO2 Emissions to 350 ppm
The World Clock created by Peter Russell, British author and futurist is a stunning look at what’s happening literally minute by minute on our earth. One look at this clock is all it takes, and it’s worth a million words.
Will Climate Refugees Be Allowed Safe Haven on James Lovelock’s “Lifeboats?”
Can we create for ourselves in enough time societies governed by a new set of “rules,” a new way of organizing ourselves, a new way of living with the earth and with one another? Can we create a new way that we live as individuals, day-to-day, that builds upon the life examples and teachings of history’s great spiritual leaders, or the life examples of the tens of millions, if not hundreds of millions, who have come before us who gave their lives struggling and sacrificing for a better world for their descendants?
There are many of us all around the world who believe, unlike Lovelock, that we have it in us not just to try but to have a chance of succeeding. But it’s a race against time.
Shocking Australian Government Report on Dangerous Climate Change
“Climate Change 2009″ Faster Change and More Serious Risks By Will Steffen Click here to download the full report Executive summary: State of the Science 2009 The IPCC’s Fourth Assessment Report (AR4) is an outstanding source of information on our current scientific understanding of the climate system and how it is responding to the changes in the [...]
