Variations in snow cover largely occur in the northern hemisphere, since Antarctica is always covered with snow and the surrounding southern hemisphere territories which receive seasonal snow are comparatively small, and generally at high elevation.
365 Days of Climate Awareness 186 – Cloud Cover
Clouds are one of the hardest components of the climate system to characterize with respect to global warming.
Clouds are one of the hardest components of the climate system to characterize with respect to global warming.
365 Days of Climate Awareness 185 – Water Vapor
Water vapor’s presence in the atmosphere is highly dynamic.
Water vapor’s presence in the atmosphere is highly dynamic.
365 Days of Climate Awareness 184 – Global Ocean Salinity
In recent decades, change in regional salinity has been due mostly to increase in the global hydrological (water) cycle.
In recent decades, change in regional salinity has been due mostly to increase in the global hydrological (water) cycle.
365 Days of Climate Awareness 183 – Changes in Oceanic Heat Content
It is estimated that the ocean stores roughly 90% of the heat added to the biosphere due to increased greenhouse gases in the atmosphere.
It is estimated that the ocean stores roughly 90% of the heat added to the biosphere due to increased greenhouse gases in the atmosphere.
365 Days of Climate Awareness 182 – Marine Species Migration
Marine species can be an excellent indicator of climate change, since many have specific environmental tolerances for temperature as well as diet.
Marine species can be an excellent indicator of climate change, since many have specific environmental tolerances for temperature as well as diet.
365 Days of Climate Awareness 181 – Plant Hardiness Zones
In 1927 Dr. Alfred Rehder of Harvard’s Arnold Arboretum in Boston created a plant hardiness map for the United States.
In 1927 Dr. Alfred Rehder of Harvard’s Arnold Arboretum in Boston created a plant hardiness map for the United States.
365 Days of Climate Awareness 180 – Satellite Altimetry 2: How It Works
Satellites can orbit the earth in a number of ways.
Satellites can orbit the earth in a number of ways.
365 Days of Climate Awareness 179 – Satellite Altimetry 1: Remote Sensing
Much of science is conducted by remote sensing, using a machine to detect energy signals which originated somewhere else, and inferring physical conditions at the point of origin based on the signal.
Much of science is conducted by remote sensing, using a machine to detect energy signals which originated somewhere else, and inferring physical conditions at the point of origin based on the signal.
365 Days of Climate Awareness 178 – Arctic Sea Ice 2000-2021
Sea ice in the Arctic is one of the most visible symbols of global warming.
Sea ice in the Arctic is one of the most visible symbols of global warming.
365 Days of Global Awareness 177 – Climate Trend Snapshots
Understanding where variability is most likely is an important part not only of seeing the news clearly, but also of making plans.
Understanding where variability is most likely is an important part not only of seeing the news clearly, but also of making plans.
365 Days of Climate Awareness 176 – 2021 State of the World Climate
2021 featured a fairly consistent La Niña.
2021 featured a fairly consistent La Niña.
365 Days of Climate Awareness 175 – 2021 State of the Climate, North America
Severe drought affected a record area of the United States in 2021.
Severe drought affected a record area of the United States in 2021.
365 Days of Climate Awareness 174 – 2020 State of the World Climate
Arctic Siberia experienced the highest temperature anomalies of the Eurasian landmass, with its firth-warmest summer and warmest autumn on record, with many areas averaging more than 5°C/9°F above the long-term average for the year.
Arctic Siberia experienced the highest temperature anomalies of the Eurasian landmass, with its firth-warmest summer and warmest autumn on record, with many areas averaging more than 5°C/9°F above the long-term average for the year.
365 Days of Climate Awareness 173 – 2020 State of the Climate, North America
2020 was an extraordinarily active cyclone season in the North Atlantic, with storm counts well above and the ACE almost 80% higher than the long-term averages, second only to 2005 for overall severity.
2020 was an extraordinarily active cyclone season in the North Atlantic, with storm counts well above and the ACE almost 80% higher than the long-term averages, second only to 2005 for overall severity.
365 Days of Climate Awareness 172 – 2019 State of the World Climate
Global atmospheric CO2 concentration: 410.07 ppm, +2.45 ppm from 2018
Global atmospheric CO2 concentration: 410.07 ppm, +2.45 ppm from 2018