Possible fossils from space?

algae-fossil-meteorite-640x165Scientists have found what appear to be fossils resembling plankton inside of a meteorite that landed in Sri Lanka in 2012.  It’s certainly not conclusive, as there’s even the possibility this meteorite was ejected from this planet in some larger impact long ago and just now fell back…but it’s an intriguing possibility.  I think we’ll need many, many more examples of this before it starts to gain scientific credibility.

(via Extremetech)

Gigabot – large-scale 3D printing

3D printing is taking a big step forward with the Gigabot, a Kickstarter project that aims to produce a 3D printer with a massive 24x24x24″ build envelope!  Ready-to-assemble kits cost $2500 (pay more if you want it assembled for you).  Cool stuff, though I’m not quite sure the market is ready for this (apart from those people wishing to print cool lamp shades…).

 

Good news for sharks

CITES in Bangkok :  Scalloped Hammerhead SharkGood news for sharks!  After years of being killed in unsustainable levels, they’ve finally received international recognition of their threatened numbers and a degree of protection in the form of fishing permits to limit catches (manta rays also received some protection).  While on the surface this is encouraging news, keep in mind that catch limits have applied to tuna for years, and been routinely ignored by all but the Sea Shepherds who took it upon themselves to document and stop illegal fishing activities.  So, forgive me a bit of pessimism about this latest move to protect sharks.  It’s a step in the right direction, but in no way can we consider this matter resolved.  Note too that this protection applies to only six species of sharks, out of an estimated 450 (of which about one third are endangered).

The cost of climate change

People are so incredibly focused on what fighting climate change would cost then, now, that they tend to overlook the cost of inaction.  Sure, most of this cost will be borne by future generations, but what gives us the right to burden them with this?  They deserve the same, or better, quality of life as us.  So, what is the cost of climate impacts due to human-caused CO2 pollution?  A recent study (link) finds the worst case cost, which is based on our current course of action, at about $1240 trillion, a number so large that I have a hard time comprehending it (the timeframe of this is a bit unclear, but they do say the annual impact is about $1.5 trillion so this cost looks like a long-term one, not to downplay its significance any!).  What’s more important is that they also estimate that, if we can stabilize CO2 levels at 450ppm, the impact is only about $110 trillion, a substantial savings.  Given the obvious cost savings here, and our current inaction, I fear our generation will do nothing more than teach future generations to not be so greedy.  Which is not all bad, assuming future generations can manage to still have a cohesive, productive society in the changing ecosystem we’re creating for them.  Read more here.

Jumping now to this infographic, obtained from grist.  It lays out the expected impact of climate change, taking into account different CO2 emission scenarios (we’re on track for the worst case scenario as laid out here…scary).  Click the thumbnail below for the full image.

IiB CO2 graphic v3

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