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Halcyon actively monitors change covering more than 150 key elements of life.

A Mundane Comedy is Dominic Kelleher's new book, which will be published later in 2023. The introduction is available here and further extracts will appear on this site in the coming months. Please get in touch with any questions or thoughts.

The 52:52:52 project, launching both on this site and on Twitter in mid 2023 will help you address 52 issues with 52 responses over 52 weeks.


On the Anthropocene
Halcyon In Kal… 16 December 2020


Are we now entering the Anthropocene, an age shaped primarily by people?  

Some geologists say we are already living in the Anthropocene age: the age of man. For example, almost 90% of the world’s plant activity, by some estimates, is to be found in ecosystems where humans play a significant role, thereby putting further strains on the planet's resilience.

People are living longer almost everywhere Halcyon In Figures 14 October 2019


In 1960, the average life span globally was 52.6 years. Today it’s  72 years. The reasons include improvements in child survival, expanded access to healthcare (including widespread vaccination), and people being lifted out of extreme poverty.

Everyone, Everywhere Is Living Longer