Entries by Daphne Hanson

The Gaia hypothesis

According to James Lovelock in his original Gaia hypothesis, the planet Earth is alive, and its self-regulation is a complex interplay between living and non-living factors. Currently, Earth System Sciences and biocomplexity are ways of approaching the same problem. It establishes a mental model for a healthy, happy, balanced, ethical, and environmentally responsible humanity. Explain […]

The mean temperature

Many climatologists have concluded that the mean temperature increases since the late 1970s cannot be attributed solely to natural causes. Assuming this is indeed the case, to what extent is the increase anthropogenic (caused by humans)?

The gravity anomaly

What is a gravity anomaly? What causes gravity anomalies to occur? How would you expect the gravity anomaly of a buried dense sphere to change if the sphere is buried at different depths?

The core-periphery model

The core-periphery model decribes flows and linkages between countries and is not a simple classification of countries; thus evidences the creation of which type of region: Formal Functional None Catalonia is not a sign or evidence of Europe’s devolution

The Deng Xiaoping

When Deng Xiaoping was elected leader in 1978 he set out to transform China with the hope that the country would catch up with the West in a decade. Which of the following policies (explained in the film China’s Capitalist Revolution: Opening the Door) did he put into place to meet this goal? Food for […]

The neoclassical economists

Neoclassical economists focused on the market to find a way out for developing countries. Policies of liberalization, stabilization, and privatization, therefore, become the central elements of the national development agenda. Foreign trade, private international investments, and foreign aid flowing into the developing countries are expected to accelerate economic efficiency and economic growth of these countries” […]

The global surface temperatures

Substantial evidence exists that mean global surface temperatures have been above the twentieth-century mean, and have trended higher (although not steadily), since the late 1970s (see chart above). But is the twentieth century mean a true long-term mean?