Re: Plants and a Warming Planet
I shall throw the BS flag on this one, as deforestation in the Amazon over the past 50 years is eerily similar to the deforestation of the NE United States back in the 19th Century (1800s).
Did you know that when the Mayflower landed on Plymouth Rock in 1620, much of the NE USA was forested, and by the mid-1800's through the turn of the 20th Century, many of the forests were hewn down for construction materials for the expansion west?
To get specific, NYS, it is speculated, was @ 60% forested at the time of European settlement. Over the course of 200+ years, NYS Forest declines to under 10% of NYS being forested (areas that have maintaind forests were Northern Zone, or Adirondack Park region, the Catskills along the SE NY/ NW NJ/ NE PA Border, and in Allegany State Park SW NY/ NW PA border). The rest of NYS was a few woodlots, expansive grasslands and farms, etc., with the timber predominantly used for construction materials and fuel. Looks like this trend bottomed out @ 1920, and reforestation efforts started to develop. Now, nearly 100 years later, NYS is 63% forested in total, but I have heard this number may be even higher from the professionals I work with at the NYS DEC.
How can this be? The entire state, and indeed the NE USA was just about completely deforested - by 1920, yet we had no "global warming" crises being bandied about back then? Certainly today with 63%+ of NYS being once again forested, much of this occurring naturally (natural succession), while some as well from re-planting efforts from paper mills, NYS Government and volunteers/ land owners planting saplings and such.
In terms of plantlife, terrestrial plantlife, ebbs and flows always happen, regardless of our overall practices (yes we do have an impact in this area), but the planet and nature takes care of this over time. After all meadows want to turn into forests, then a big old fire wipes out said mature forest, and the process starts all over again.
So, while we see damage done in the Amazon, other regions of the world see forests coming back. I think if we are speaking about GLOBAL climate, then it may be best to look at GLOBAL canopy/ forest cover, as in one area we may see forests disappearing, while in other areas forests regenerating.
Also, in terms of oceans holding temperatures, sure water holds temperature better than air, yet we have not really devled into sub-marine volcanic activity, or the like with temperatures down in the deep.
Again, no magic bullets in this magazine....