New review of more than 140 studies investigates the physiological hazards that climate change will likely to have on animal life and humans. The findings of the study are published in the journal Physiology.
2018 was the fourth-warmest year on record, according to NASA scientists, and the majority of the hottest days on record occurred in the past decade.
Health Effects of Global Warming
Greenhouse effect causes excessive heat to build up in the earth's atmosphere causing global warming and affects the environment and health.
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‘The growing intensity of global warming raises the likelihood of heatstroke, related illnesses in people, as well as heat stress in animals on land, in the sea and the air.’
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These data point to a trend of warmer temperatures and an increasing frequency and severity of heat waves well into the 21st century.
"Animal populations are likely to respond to increased frequency and severity of heat waves by several different modes: movement, adjustment, and death (or selection)," wrote Jonathon Stillman, Ph.D., author of the review.
![Climate Change Impacts Selenium Content in Soil and Foods]( "Climate Change Impacts Selenium Content in Soil and Foods")
Fertilizers containing selenium could be used to combat selenium deficiency as, the selenium content in foods depends on the quality of soil.
Stillman describes how species including humans are adjusting migration patterns, behavior and physiological characteristics to cope with an increasingly hotter climate.
Migration: Many species alter their seasonal patterns of movement also known as migration to avoid locations that are too hot. Some migratory species of birds and fish may settle in areas that, due to global warming, are no longer too cold.
Behavioral changes: "Behavioral shifts in response to extreme heat in endothermic homeotherms (i.e., birds, mammals) are most likely to increase the time spent evaporatively cooling (e.g., sweating, panting, gular fluttering, swimming), with an [accompanying] increase in water demands," Stillman wrote. Through increased cooling methods, however, many small species lose more water than their body size can accommodate. Dehydration can become a major threat to survival.
Physiological changes: Shifts in proteins that regulate energy balance and gene expression may occur when ambient temperatures remain consistently higher than in previous years. These adjustments sometimes lead to inefficiency of the cells' energy centers (mitochondria) and may cause increased cellular stress. These and other physiological changes may also take place in future generations due to the parents' behavioral and physical shifts.
Human behavior: "Shifts in the behavior of human societies will also be required in response to increased severity of heat waves, especially in populations that have not historically experienced daily-activity routines during dangerous levels of extreme heat," Stillman wrote. This is especially true for people living in cities because they are less likely to have immediate access to bodies of water, which provide a source of cooling, he explained.
"Today's cohort of ecological, evolutionary and environmental physiologists, along with the next generation of scientists being mentored by them, have crucial roles to play in producing, communicating and translating the science-based evidence that responsible policy-makers require to address the effects of short- and long-term consequence of climate change on animals, including humans," Stillman wrote.
Source: Eurekalert
Climate Change Impacts Selenium Content in Soil and Foods
Fertilizers containing selenium could be used to combat selenium deficiency as, the selenium content in foods depends on the quality of soil.
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Stillman describes how species including humans are adjusting migration patterns, behavior and physiological characteristics to cope with an increasingly hotter climate.
Migration: Many species alter their seasonal patterns of movement also known as migration to avoid locations that are too hot. Some migratory species of birds and fish may settle in areas that, due to global warming, are no longer too cold.
Behavioral changes: "Behavioral shifts in response to extreme heat in endothermic homeotherms (i.e., birds, mammals) are most likely to increase the time spent evaporatively cooling (e.g., sweating, panting, gular fluttering, swimming), with an [accompanying] increase in water demands," Stillman wrote. Through increased cooling methods, however, many small species lose more water than their body size can accommodate. Dehydration can become a major threat to survival.
Physiological changes: Shifts in proteins that regulate energy balance and gene expression may occur when ambient temperatures remain consistently higher than in previous years. These adjustments sometimes lead to inefficiency of the cells' energy centers (mitochondria) and may cause increased cellular stress. These and other physiological changes may also take place in future generations due to the parents' behavioral and physical shifts.
Human behavior: "Shifts in the behavior of human societies will also be required in response to increased severity of heat waves, especially in populations that have not historically experienced daily-activity routines during dangerous levels of extreme heat," Stillman wrote. This is especially true for people living in cities because they are less likely to have immediate access to bodies of water, which provide a source of cooling, he explained.
"Today's cohort of ecological, evolutionary and environmental physiologists, along with the next generation of scientists being mentored by them, have crucial roles to play in producing, communicating and translating the science-based evidence that responsible policy-makers require to address the effects of short- and long-term consequence of climate change on animals, including humans," Stillman wrote.
Source: Eurekalert
Climate Change Turns Foliage Less Nutritious in Rainforest
Nutritional quality of foliage in Kibale National Park in Uganda, an evergreen rainforest, has substantially declined over the last 15-30 years.
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