Desertificare

1999:

1987:


Am mai pus poza asta: Parc national, Tunisia
"The 1987 image shows a region pushed toward desertification by the combined pressures of drought, agriculture, and overgrazing. In the 1999 image, the area’s native vegetation had begin to return inside the park’s protected borders."

The Final Empire CHAPTER 4: THE FOREST

Ni se spune: "conditiile de mediu i-au facut pe oameni sa inventeze si sa migreze". Sigur ca da. Ce arata poza de mai sus ? "Civilizatia" atat stie, creste cat poate - isi distruge baza pe care sta, se muta apoi in alta parte si face acelasi lucru. Nu "conditiile de mediu". "Mediul" fiind vazut ca ceva separat. Viata nu e asa de proasta, face totul pentru a ramane vie - asta inseamna si ca "are grija" de sistemul din care face parte chiar daca nu e ceva planuit. E normal sa "aiba grija" - inconstient - daca ecosistemul a evoluat timp de milioane de ani, nu are cum sa nu fie in echilibru. Nu e ca si cum ar fi compus din elemente separate, ingramadite deodata intr-o zona, si fiecare incearca sa-i omoare pe toti ceilalti ca sa aiba el loc.

Final Empire Part Three: THE EXHAUSTION OF THE INDUSTRIAL EMPIRE
"There is no such thing as unlimited growth of numbers in the natural world. The populations of organic beings in the web of the natural world do not press constantly against their food supply. For several million years humans maintained a stable population with respect to their environment. The idea that there is something inevitable about human population expansion is wrong. Historically, population explosions have only happened within the human culture that we know as civilization. The idea of linear increase of population was popularized by Thomas R. Malthus and picked up by Charles Darwin in his theory of evolution. Population increase was the basis of the biological dynamics of Darwin's model. Darwin says that, "A struggle for existence inevitably follows from the high rate at which all organic beings tend to increase." Here is one of the grim assumptions that are typical of Darwin's era."

"No species strives to increase without limit, any more than an individual tends to grow to infinity. And animal populations are limited not by struggle, starvation, and death, but by restricting the number of breeders in various ways and by varying the number of offspring produced at a time by each female. Biologist V. C. Wynne-Edward's comments on Darwin's assumption that every living thing strives to increase its numbers geometrically."