
Administration has tried to bury the new National Climate Assessment – perhaps an even more significant scientific document, for Americans, than the recent IPCC report – in that it is the work product of the American government’s own science agencies.
Let’s make sure the Black Friday news dump strategy doesn’t work.
This U.S. federal government report shows that:
- Human activity, like burning fossil fuels, is the primary cause for the warming temperatures we are undoubtedly experiencing.
- By the end of this century, fighting climate change will save hundreds of billions of dollars just in public health costs, and save thousands of lives a year.
- Americans are already paying for climate change as it makes storms more damaging, heat waves more deadly, wildfires more common, allergies worse and some diseases more widespread.
- The U.S. military, as well as many farmers, businesses, and local communities are already planning for and adapting to climate change.
- Climate change is a clear and present danger to the health and wealth of the American people.
Topline findings of the report include:
Human activity, primarily burning fossil fuels, is causing climate change. There is no credible alternative to global warming emissions to explain the warming.
- Global average temperatures have risen 1.8°F (1.0°C) since 1901, predominantly because of human activity, especially the emission of heat-trapping gases.
- Globally, 16 of the last 17 years are the warmest years on record.
- Depending on the region, Americans could experience an additional month to two month’s worth of days with maximum temperatures above 100°F (38°C) by 2050, with that severe heat becoming commonplace in the southeast by 2100.
Economic losses from climate change are significant for some sectors of the U.S. economy.
- In some sectors, losses driven by the impacts of climate change could exceed $100 billion annually by the end of the century.
- If emissions continue unabated, extreme temperatures could end up costing billions upon billions in lost wages annually by the end of the century, and negatively impact the health of construction, agricultural and other outdoor workers.
- Many aspects of climate change – including extreme heat, droughts, and floods – will pose risks to the U.S. agricultural sector. In many places, crop yields, as well as crop and grazing land quality, are expected to decline as a result.
- We may be underestimating our level of risk by failing to account for multiple impacts occurring at once, or not planning for impacts that will span across government borders and sector boundaries.
- Our aging infrastructure, especially our electric grid, will continue to be stressed by extreme weather events, which is why helping communities on the frontlines of climate impacts to adapt is so crucial.







