Ecological pyramids are graphical representations of the trophic structure of ecosystems. Ecological pyramids are organized with the productivity of plants on the bottom, that of herbivores above the plants, and carnivores above the herbivores. If the ecosystem sustains top carnivores, they are represented at the apex of the ecological pyramid of productivity. Ecological food webs are based […]

Reducing environmental stress in a growing economy requires improvements in eco-efficiency larger than economic growth, in order to achieve absolute decoupling. How far and how fast can and should we go; can substantial environmental improvements be realised in combination with economic growth? Research should indicate the potential for environmental improvement through technological development, under realistic […]

Studi korelasi ditujukan untuk melihat keterkaitan atau hubungan antara dua variabel atau lebih. Beberapa hal penting dalam studi ini adalah: 1. Pastikan variabel yang akan diteliti tersebut logis dan dapat diukur. 2. Perhatikan koefisien korelasi yang dinyatakan dalam bentuk angka desimal -1,00 sampai 0,00 sampai + 1,00. — berlanjut, Harisman Simangunsong

By Paul R. Ehrlich and Anne H. Ehrlich July 14, 2009 No driver of environmental deterioration is more obvious than population growth, and none has been more taboo to talk about – especially in recent decades. Even ecologists have often danced around the topic. Although more than 40 years have passed since we wrote The Population Bomb, the book is […]