May

"While options range from incremental changes to fundamental reform, science provides a clear warning about continuing on our current path." in Beyond growth: pathways towards sustainable prosperity in the EU, document for the European 'Beyond Growth' conference taking place next week (15 to 17 May, 2023), prepared by the Parliament, Directorate-General for Parliamentary Research Services, presenting "the economic and socio-ecological challenges facing today's society and offers a reflection on possible transition pathways and associated tools to move beyond growth in EU policies. The focus is the European Union and its Member States, with the global context integrated where relevant for understanding the status quo and discussing options." See also the brief «'beyond growth': concepts and challenges» (May 2023).

Photo by Monica Pinheiro, free to use if you respect the license CC BY-NC-SA ( CC ).

December

Phenology: "the study of periodic events in biological life cycles and how these are influenced by seasonal and interannual variations in climate, as well as habitat factors (such as elevation). (...) Examples include the date of emergence of leaves and flowers (...), the date of leaf colouring and fall in deciduous trees (...). In the scientific literature on ecology, the term is used more generally to indicate the time frame for any seasonal biological phenomena, including the dates of last appearance (e.g., the seasonal phenology of a species may be from April through September). (...) In addition to providing a longer historical baseline than instrumental measurements, phenological observations provide high temporal resolution of ongoing changes related to global warming." 

 

Image by Monica Pinheiro, license CC BY-NC-SA (CC).

 

20220105: text was changed from book citation to definition of «phenology», maintaining the photo showing a tree, displaying all 4 seasons at time of capture (December, Cacem, Portugal), with nude parts, white flowers, green leafs, fruits and yellow and red leafs in other parts of the same tree.