Revise Environment and sustainability as a political challenge for IB Global Politics (4.2)

A crucial distinction in global environmental politics is between 'environmentalism' and 'ecologism'. Environmentalism is a reformist stance that accepts the current political and economic system (liberal capitalism) and seeks to make it more 'green'. It focuses on technological solutions, market mechanisms (e.g., emissions trading schemes), and international agreements that work within the existing state system. In contrast, ecologism is a radical ideology that argues the current system is the root cause of the environmental crisis. Ecologists call for a fundamental restructuring of society, questioning consumerism, economic growth, and the human-centred (anthropocentric) worldview. Understanding this divide is key to analysing why proposed solutions to environmental problems are often so contested.

Garrett Hardin's 1968 concept of the 'tragedy of the commons' provides a powerful model for understanding the political challenge of environmental issues. The 'commons' refers to a shared, unregulated resource (e.g., the atmosphere, oceans, fish stocks). The 'tragedy' occurs because each individual actor (a state, a corporation, a person) has a rational incentive to exploit the resource for their own gain, while the costs of that exploitation (e.g., pollution, resource depletion) are shared by all. The cumulative effect of these individual rational actions is the destruction of the commons, which is irrational for the group as a whole. This creates a collective action problem that is central to global environmental politics.

Global environmental governance is a crowded and contested space populated by various actors with differing levels of power and influence. States remain the primary actors, but they are deeply divided. The 'North-South divide' is a major fault line, reflecting disputes over historical responsibility, economic capacity, and the principle of 'Common but Differentiated Responsibilities' (CBDR). Developing countries (the 'Global South') argue that developed countries (the 'Global North') caused the bulk of historical emissions and should therefore take the lead in mitigation and provide financial and technological support. Alongside states, IGOs like the UN Environment Programme (UNEP), NGOs like Greenpeace, and powerful Multinational Corporations (MNCs) all seek to shape policy, creating a complex web of cooperation and conflict.