Comments on New SPPI Paper

Source: SPPIIdso forests

From: D. Ambler
Subject: New SPPI Paper: Modern Growth Trends of Forests

Hi Bob

This paper is a very good demonstration of how critical CO2 is to life.

The myth that permeates the current thinking and propaganda, is that the rainforests are permanent natural features of the earth. Nothing could be further from the truth:

Professor Philip Stott, Emeritus Professor of BioGeography at the School of Oriental and African Studies, University of London, wrote this in 2003:

?At the end of the last ice age, only some 12-18000 years ago, the tropics were covered by seasonal savannah grasslands, cooler and much drier than now. There were no rain forests in the Malay Peninsula and much of Amazonia, and, despite the increasing human development of forested space, there are still more rain forests persisting than existed then.

As in Europe and North America, the forests came and went as climate changed; there is no Clementsian ?long period of control? under one climate. Beneath many rain forests, there are sheets of ash, a testimony in the soil to past fires and non-forested landscapes.?

He still maintains a site here:
http://www.probiotech.fsnet.co.uk/trfseminar.html

Items like these never get much traction:
?Brazil: Ancient Amazon Actually Highly Urbanized? August 31st 2008

?The report in Friday?s edition of the journal Science, describes clusters of towns and smaller villages that were connected by complex road networks and were arranged around large central plazas. Researches also discovered signs of farming, wetland management and fish farms in the ancient settlements that are now almost completely covered by rainforest.?

http://www.scientificamerican.com/article.cfm?id=lost-amazon-cities

“The remains of houses and ceramic cooking utensils show that humans occupied these cities for around 1,000 years, from roughly 1,500 years to as recently as 400 years ago. Satellite pictures reveal that during that time, the inhabitants carved roads through the jungle; all plaza villages had a major road that ran northeast to southwest along the summer solstice axis and linked to other settlements as much as three miles (five kilometers) away. There were bridges on some of the roads and others had canoe canals running alongside them.

The remains of the settlements also hint at surrounding large fields of manioc, or cassava (a starchy root that is still a staple part of the Brazilian diet) as well as the earthen dams and artificial ponds of fish farming, still practiced by people who may be the present-day descendants of the Kuikuro. Although such “garden cities,” as Heckenberger describes them in Science, do not match the dense urbanism of contemporary Brazilian metropolises such as Rio de Janeiro or São Paulo, they do blend seamlessly into the jungle and maximize use of limited natural resources. They also suggest that the rainforest bears the marks of intense human habitation, rather than being pristine.”

?Stone age etchings found in Amazon basin as river levels fall?: 10 November 2010 Guardian
?Archaeologists who have studied the photographs believe the art ? which features images of faces and snakes ? is another indication that thousands of years ago the Amazon was already home to large civilisations.

?Eduardo Neves, president of the Brazilian Society of Archaeology and a leading Amazon scholar, said the etchings appeared to have been made between 3,000 and 7,000 years ago when water levels in the region were lower. The etchings were ?further, undeniable evidence? that the region had been occupied by a significant number of ancient settlements and people.?”

SOUTH AMERICA DURING THE LAST 150,000 YEARS ? Jonathan Adams, Environmental

Sciences Division, Oak Ridge National Laboratory

?In general, it would seem that 150-130,000 y.a. the continent showed the general glacial-age pattern of colder and more arid conditions. After about 130,000 y.a., climate warmed and moistened and the forests reached a similar area to the present. After 115,000 y.a., cold and aridity began to influence the vegetation, to an arid, cool maximum around 70,000 y.a., followed by erratic but generally fairly cool and drier-than-present conditions throughout the continent. A second cold, arid maximum began around 22,000 years ago and lasted until about 14,000 14C y.a., after which rainfall and temperatures increased and the forests returned over several thousand years.?

http://www.esd.ornl.gov/projects/qen/nercSOUTHAMERICA.html
Regards

Dennis