A
Axel Berger
Guest
"horst-d.winzler" wrote:
Auch dazu zitiere ich mich selbst:
"The real result of Bobe & Carvalho and Faith et al. is neither
mentioned, far less discussed by them. It was not few and puny humans
that started the decline of African megafauna five million years back,
but a rather catastrophic collapse of the carbon dioxide level and the
resulting rise of C4 vegetation. Climate and aridity seem to have played
a secondary role, so maybe we're just witnessing the beginning of
Africa's regreening."
Auf http://axel.berger-odenthal.de/review/B-181223.htm findet sich auch
die Quelle dazu, in diesem Fall science.
--
/Ż\ No | Dipl.-Ing. F. Axel Berger Tel: +49/ 221/ 7771 8067
\ / HTML | Roald-Amundsen-Straße 2a Fax: +49/ 221/ 7771 8069
X in | D-50829 Köln-Ossendorf http://berger-odenthal.de
/ \ Mail | -- No unannounced, large, binary attachments, please! --
Die Grenze an der sich die
Biosphäre verabschiedet liegt bei etwa 125ppm. Bei der lange Zeit
geherrschten Konzentration von 260ppm schaue man sich mal an, wie weit
verbreitet HungernĂśte damals waren.
Auch dazu zitiere ich mich selbst:
"The real result of Bobe & Carvalho and Faith et al. is neither
mentioned, far less discussed by them. It was not few and puny humans
that started the decline of African megafauna five million years back,
but a rather catastrophic collapse of the carbon dioxide level and the
resulting rise of C4 vegetation. Climate and aridity seem to have played
a secondary role, so maybe we're just witnessing the beginning of
Africa's regreening."
Auf http://axel.berger-odenthal.de/review/B-181223.htm findet sich auch
die Quelle dazu, in diesem Fall science.
--
/Ż\ No | Dipl.-Ing. F. Axel Berger Tel: +49/ 221/ 7771 8067
\ / HTML | Roald-Amundsen-Straße 2a Fax: +49/ 221/ 7771 8069
X in | D-50829 Köln-Ossendorf http://berger-odenthal.de
/ \ Mail | -- No unannounced, large, binary attachments, please! --