Timeline of Sustainable Development
Emergence of the Anthropocene
Daniel Hoornweg
About the timeline
This timeline captures influences on planetary systems and societies as humans grew in numbers and wealth, and associated impacts escalated even faster. The first Sustainability Timeline document was published in 2015. It is updated annually and attempts to capture the key aspects of sustainable development.
Glimpses of sustainability are emerging as global population is likely to peak before 2080. Increasingly, pathways are available for reduced material extraction, fossil fuel combustion, and biodiversity loss.
The timeline is further divided into categories: Exploration and discovery, society and culture, planetary impacts, improving outcomes, and growing the economy. Below are links to the main timeline, a PDF version, and the five individual categories.
Overview
About 11,700 years ago, the last Ice Age ended giving rise to the start of the Holocene, and flourishing of humanity. About 10,000 years ago, some animals were domesticated and others extirpated as human impacts on the earth gradually grew. Global population increased slowly, not reaching 1 billion until 1820. Wealth and life expectancy remained modest: in 1800 and 1900, average life expectancy was 40 and 48 years and wealth was $200 and $680 per person respectively. The 1950s ushered in the ‘great acceleration,’ as energy and material consumption grew significantly, so too did planetary impacts.
By 2000, life expectancy was 78 years and global wealth grew to a staggering $6500 per person (with a global population in excess of 6 billion). Atmospheric CO₂ concentrations that were a stable 280 ppm prior to the Industrial Revolution now exceed 423 ppm, a level not seen since the Pliocene 3.3 million years ago (when average temperatures were about 4°C higher).
The concept of sustainable development can be traced back to at least 1713. The term rose to prominence in 1987 with publication of Our Common Future. Progress is mixed with significant gains in reduced poverty but with growing inequality, severe losses of biodiversity, threatening climate change, unsustainable use of synthetic fertilizers, and land-use changes.



























