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A paper published by researchers from Chinese universities suggests that global warming is causing changes in the length and onset of the four seasons. Summers are becoming longer and hotter, while winters are becoming shorter and warmer. This trend is expected to continue and may be amplified in the future. The shift in seasonal patterns could have negative impacts on ecosystems, agriculture, and the occurrence of extreme weather events. It is important for humanity to take responsibility and mitigate the effects of climate change to ensure a more stable future. [Extracted from the article]

Mass extinction is a phenomenon in the history of life on Earth when a considerable number of species go extinct over a relatively short period of time. The magnitude of extinction varies between the events, the most well known are the "Big Five" when more than half of all species went extinct. There were many extinctions with a smaller magnitude too. It is widely believed that the common trigger leading to a mass extinction is a climate change such as a global warming or global cooling. There are, however, many open questions with regard to the effect and potential importance of specific factors and processes. In this paper, we develop a novel mathematical model that takes into account two factors largely overlooked in the mass extinctions literature, namely, (i) the active feedback of some taxa – in particular, vegetation – to the climate through changing the albedo of the Earth's surface and (ii) species' adaptive evolutionary response to a climate change. We show that whether a species goes extinct or not depends on a subtle interplay between the scale of the climate change and the rate of species' evolutionary response. We also show that species' response to a fast climate change can exhibit long transient dynamics (false extinction) when the species population density remain at a low value for a long time before recovering to its safe steady state value. Finally, we show that the distribution of extinction frequencies predicted by our model is generally consistent with the fossil record. • Mass extinction is the extinction of a considerable number of species over a relatively short period of time. • We develop a novel mathematical model that takes into account the active feedback of vegetation to the climate. • The model accounts for species' adaptive evolutionary responses to a climate change. • Species extinction depends on the interplay between the rate of climate change and the rate of its evolutionary response. • The distribution of extinction frequencies predicted by our model is generally consistent with the fossil record. [ABSTRACT FROM AUTHOR]

Mass extinction is a phenomenon in the history of life on Earth when a considerable number of species go extinct over a relatively short period of time. The magnitude of extinction varies between the events, the most well known are the "Big Five" when more than half of all species went extinct. There were many extinctions with a smaller magnitude too. It is widely believed that the common trigger leading to a mass extinction is a climate change such as a global warming or global cooling. There are, however, many open questions with regard to the effect and potential importance of specific factors and processes. In this paper, we develop a novel mathematical model that takes into account two factors largely overlooked in the mass extinctions literature, namely, (i) the active feedback of some taxa – in particular, vegetation – to the climate through changing the albedo of the Earth's surface and (ii) species' adaptive evolutionary response to a climate change. We show that whether a species goes extinct or not depends on a subtle interplay between the scale of the climate change and the rate of species' evolutionary response. We also show that species' response to a fast climate change can exhibit long transient dynamics (false extinction) when the species population density remain at a low value for a long time before recovering to its safe steady state value. Finally, we show that the distribution of extinction frequencies predicted by our model is generally consistent with the fossil record. • Mass extinction is the extinction of a considerable number of species over a relatively short period of time. • We develop a novel mathematical model that takes into account the active feedback of vegetation to the climate. • The model accounts for species' adaptive evolutionary responses to a climate change. • Species extinction depends on the interplay between the rate of climate change and the rate of its evolutionary response. • The distribution of extinction frequencies predicted by our model is generally consistent with the fossil record. [ABSTRACT FROM AUTHOR]