Laudato Si' - just some kind of 'green' encyclical about climate change?

Pope Francis has called for special events this week to mark and draw attention to the 5th anniversary of his encyclical, Laudato Si'.

Laudato Si’ Day 7 - #52 One Single Human Family

This is the last in this series of meditations on the Pope's encyclical, Laudato Si', Chapter 1, Section V - Global Inequality.
What does the Pope mean by “structural perversion” and “differentiated responsibilities”?

52. The foreign debt of poor countries has become a way of controlling them, yet this is not the case where ecological debt is concerned. In different ways, developing countries, where the most important reserves of the biosphere are found, continue to fuel the development of richer countries at the cost of their own present and future.

Laudato Si’ Day 6 - #51 The Ethics of International Relations

What does the Pope mean by “ecological debt”?

51. Inequity affects not only individuals but entire countries; it compels us to consider an ethics of international relations. A true “ecological debt” exists, particularly between the global north and south, connected to commercial imbalances with effects on the environment, and the disproportionate use of natural resources by certain countries over long periods of time.