Launch photo from the successful NASA mission CRS-NG-12 taken via a NASA Social Media event at Wallops Flight Facility, Wallops Island, for an International Space Station Resupply and Science mission: CRS-NG-12 on Nov 2, 2019 at 9:59:47 AM EST. #NASA #NASAsocial @NASA @NASAwallops @NASASocial
Climate Change
Headlines from IPCC’s Fifth Assessment
Headlines from IPCC’s Fifth Assessment
Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia. The atmosphere and ocean have warmed, the amounts of snow and ice have diminished, sea level has risen, and the concentrations of greenhouse gases have increased.
Carbon Dioxide levels have reached an historic 400 ppm
Keeling Curve
‘Robotic Bees Pollinating the Future’: Isn’t this the wrong approach?
I was startled to see this blog post in the Smithsonian!
What are these people (Engineers?) thinking!?
Isn’t this the wrong approach — Creating robots to do the work that animals used to do?
Wow, Smithsonian, you’ve taken a turn for the worse…
Wired Science: Ocean Acidification & Ocean Acoustics
“Acidification due to global warming could lead to oceans with similar acoustic properties to those experienced by the dinosaurs of the Cretaceous period.
According to a presentation given by acoustics researchers David G Browning and Peter M Scheifele as part of the 164th meeting of the Acoustical Society of America, changes to the baseline acidity of the world’s oceans due to global warming will have a negative effect on the absorption of low frequency sounds.
The effect occurs because the main low frequency sound absorption mechanism in seawater is a pH-dependent boron reaction. As the acidity of seawater increases, the low frequency sound absorption decreases meaning that those sounds can travel further, achieving their optimal transmission value at the acidity levels seen around 110 million years ago.”
Credit: Wired Science
Forward on Climate
Good luck to all my friends in DC participating in the Forward On Climate rally!
Say no to the KXL pipeline and support 350.org ‘s fight against fossil fuels and tar sands extraction!
Divest now @gofossilfree!
Climate Change and Politics
Will PBS Frontline documentary shed any new insights into the ‘controversial’ ‘issue’ of ‘global climate change’ in our social, cultural, and political systems?
Earth Science Week!
Celebrate Earth Science week by recycling, planting a tree, or just thinking about our planet and the environment. Even better, believe in Global Climate Change, Global Warming, and Global Melting
An interesting article about flooding, one of the effects of climate change:
http://blogs.independent.co.uk/2012/10/15/earth-science-week-the-fight-against-flooding-in-manila/
Are Biofuels green and better for the environment than other energy sources?
When you really think about it, any type of ethanol or Biofuel which you might consume for energy still requires burning carbon and releasing carbon dioxide – greenhouse gases, into the atmosphere. It’s a little more sustainable because Biofuel can be produced by growing corn, plants, or algae, whereas Fossil Fuels can’t be renewed quickly. Biofuels have advantages as a fuel type and also disadvantages to other more sustainable forms of energy production, i.e. Solar.
“First tops, then flops. That is one way of summing up the history of biofuels so far. A new study led by Empa gives an up-to-date picture of the ecobalance of various biofuels and their production processes. Only a few are overall more environmentally friendly than petrol.”
Source: EMPA Press Release:
http://www.empa.ch/plugin/template/empa/3/125597/—/l=2
http://www.empa.ch/plugin/template/empa/*/125606
Primary Source: http://www.empa.ch/plugin/template/empa/*/125527
Arctic Sea Ice Extent
Gray line in time series (right) indicate 1979 to 2000 average extent for the day shown.
jackpayette.com 
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