We cannot assume that the pressures for environmental change will remain constant. Technological change, economic and political change will all effect the future rate of use of environmental factors. This means that significant conservation can occur in places where use of environmental factors is different. This general formula may be true, but it implies that all causal factors are equal and don t influence each other. We know that affluence is affected by technology and that population is affected by affluence.
Specific causes are more useful for environmental management.
Solve land shortage through land reform or improved technology. Look for alternatives. These crisis are poorly understood and not widely appreciated. Understand Island Biogeography - the survival of species and ecosystems in reduced areas. Recognize problem and importance of public goods.