Global warming is projected to lengthen summer by nearly half a year and shorten winter by less than 2 months by 2100, causing disrupted agriculture seasons and increased risks to humanity.

Changing Lengths of the Four Seasons by Global Warming

A 10-20 day extension in the growing season has been observed in recent decades, likely due to global warming, potentially impacting plant and animal ecosystems and climate change.

Growing season changes in the last century

Using Google Earth to explore seasonal change helps students better understand the range of factors contributing to climate change and improve their understanding of climate change.

Exploring the reasons for the seasons using Google Earth, 3D models, and plots

Human activity is causing changes in the seasonal cycle of tropospheric temperature, with mid-latitude warming in the summer hemisphere due to continental drying.

Human influence on the seasonal cycle of tropospheric temperature

Drylands in the Northern Hemisphere mid-latitudes experienced enhanced changes in spring, summer, and autumn lengths due to global warming, with external forcing playing a stronger role than internal variability.

Changes in lengths of the four seasons over the drylands in the Northern Hemisphere mid-latitudes

Seasonal changes in tropical summer climate, driven by changes in trade winds and Hadley circulation, are projected to increase summer sea surface temperature and decrease winter sea surface temperature, affecting deep convection and precipitation.

Projected Future Seasonal Changes in Tropical Summer Climate

Climate change is leading to a delay in autumn, causing winter to be squeezed at both ends, increasing the growing season and affecting various species.

Observed changes in seasons: an overview

This module effectively teaches students about the causes of seasons by using photovoltaic panels to measure sunray flow and introduce basic features of Earth's climate.

Quantitative experiments to explain the change of seasons

The seasons are caused by the Earth's axial tilt in relation to the orbital plane of the Sun and Earth, not the Earth-Sun distance.

Web Resources for the Seasons

Climate change is likely to positively impact summer survival of yellow-bellied marmots but negatively impact winter survival, highlighting the need for seasonal demographic responses to accurately forecast impacts on animal population dynamics.

Contrasting effects of climate change on seasonal survival of a hibernating mammal

Climate change impacts phenology, affecting seasonal timing of events like growing season, flowering, and animal breeding seasons, with implications at both global and local levels.

Climate change and phenology

Autumn phenology impacts ecosystem productivity, reproductive capacity, and pathogen amplification, making it a crucial season for climate change research.

Autumn, the neglected season in climate change research.

Preservice elementary teachers' most commonly expressed alternative conception of seasons causes the distance of the Earth from the sun, but these alternative conceptions may not be firmly held.

Preservice Elementary Teachers' Conceptions of the Causes of Seasons.

The length of summer has increased by an average of 13 days and winter has decreased by an average of 20 days, reflecting more substantial seasonal changes than previously studied due to anthropogenic climate change.

Reconsidering meteorological seasons in a changing climate

Climate change is altering rainfall seasonality in the tropics, with increased variability and shifts in magnitude, timing, and duration.

Changes in rainfall seasonality in the tropics

Climate warming has advanced biological spring and delayed biological winter, affecting ecological processes, agriculture, forestry, human health, and the global economy.

Phenology Feedbacks on Climate Change

The average annual growing season in Europe has lengthened by 10.8 days since the early 1960s, mainly due to changes in air temperature.

Growing season extended in Europe

Human-induced climate change has led to regional changes in dry-season water availability, with some regions experiencing increased and some decreased water availability, mainly due to increased evapotranspiration rather than decreased precipitation.

Observed changes in dry-season water availability attributed to human-induced climate change

Human-caused climate change has already worsened North American pollen seasons, leading to increased pollen concentrations and longer pollen seasons, potentially worsening respiratory health impacts in coming decades.

Anthropogenic climate change is worsening North American pollen seasons

The length of ragweed pollen season has increased by 13-27 days at latitudes above 44°N since 1995, potentially affecting public health due to increased exposure to seasonal allergens.

Recent warming by latitude associated with increased length of ragweed pollen season in central North America

These studies suggest that the seasons change due to the Earth's axial tilt in relation to the orbital plane of the Sun and Earth.