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● Fatalities and illness are expected to increase as a result of increased wildfires, decreased air quality, and diseases transmitted by insects, food, and water.● Climate change impacts indigenous peoples’ health, well-being, and traditional ways of life, due to loss of ancestral homelands, traditional food supplies, decreased water quality, and increasing exposure to health and safety hazards.● Rising temperatures and increased extreme weather events are already affecting societies and the environment across the nation.Children, the elderly, the sick, the poor, and nature are especially vulnerable.Droughts, lengthy hot spells, heavy downpours, floods, and other extreme weather events are occurring more frequently and intensely every year.Around the world, research teams are analyzing these trends, noting the changes in temperature, rainfall, ice mass, sea level, and many other variables recorded by weather measuring devices.A2 assumes continued increases in emissions, and B1 assumes significant emissions reductions.(Source: 2014 NCA via NOAA NCDC / CICS-NC) The primary focus of the 2014 NCA is on identifying the specific and dangerous impacts of global warming in the United States.
As reported in the 2014 National Climate Assessment, the following facts and figures are outlined to better help us understand the current and critical realities of global warming: ● Primarily human-induced, the global warming of the past 50 years is due to accumulating heat-trapping gases in the atmosphere from the burning of fossil fuels.
In fact, after separating out natural factors, the 2014 NCA reported that slightly cooler global temperatures might have otherwise been the case, if human activities had not been detrimentally affecting the earth over the past 50 years.
Image Notes: Separating Human From Natural Influences On Global Warming.
Image Notes: Global Warming Observed in US Temperature Rise.
Climates vary naturally, so rising temperatures are not distributed evenly across the nation or over time.
Interestingly, the 2014 NCA reported that satellite sensors measuring the sun’s output over the past 50 years have recorded no overall increase in the sun’s output.