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Increasing Numbers of U.S. Residents in High-Risk Wildfire and Flood Zones Millions of Americans are living on properties that are at-risk for climate change-related disasters. The solution to the problem is far more complicated than just telling residents to move. Anuradha Varanasi, Earth Institute | February 4, 2021 | Analysis
The U.S. Federal Emergency Management Agency (FEMA) estimates that around 13 million Americans are living within a 100-year flood zone. But over the last few years, researchers have found that the government’s estimates are far lower than the ground realities.
A 2018 study published in the journal Environmental Research Letters states that, taking into account the risk of flooding from rivers, about 41 million people are exposed to flood risk. That roughly equals three times more than FEMA’s estimates of residents who live in areas with a 1 percent chance of floods striking during a
UC Davis and LADWP Collaborate on Energy-Water Conservation Study
by News and Media Relations
February 04, 2021
Conserving water goes beyond just saving water; it plays a vital role in conserving energy and reducing greenhouse gas emissions (GHGs). This is one of the main conclusions of a study conducted by UC Davis in collaboration with the Los Angeles Department of Water and Power (LADWP).
The study, published in the journal Environmental Research Letters, shows that customer-focused water conservation programs are just as cost-effective (and in some cases, are more cost-effective) as energy efficiency programs in reducing electricity use, GHGs and other energy-intensive operations.
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A 30-year high in East African rainfall during 2018 and 2019 resulted in rising water levels and widespread flooding. The new study shows that emissions of methane - the second most important greenhouse gas - from flooded East African wetlands were substantially larger following these extreme rainfall events.
The study, led by Dr Mark Lunt from the University of Edinburgh s School of GeoSciences, used data from two different satellites in combination with an atmospheric model to evaluate methane emissions from East Africa. This included data from the European TROPOMI satellite instrument, launched in 2017, which provides information about atmospheric methane at unprecedented spatial resolution.
Pollution and economic growth mostly move in sync. But some countries are bucking the trend
In a first, researchers use two decades of satellite data on pollution to show the potential to break the links between growth and emissions
February 2, 2021
Most air pollution and anthropogenic carbon dioxide in the atmosphere comes from burning fossil fuels. And since the Industrial Revolution, burning fossil fuels has generally been necessary to drive economic growth.
But these three measures need not be as tightly linked as people tend to assume, a new study suggests.
Researchers looked at nearly two decades’ worth of global satellite data on air pollution, spanning the period from 2001-2018. They also gathered data on fossil fuel carbon dioxide emissions from a global inventory. (To exclude air pollution from dust, wildfires, and biomass burning, they only looked at air pollution in areas where fossil fuel carbon dioxide emissions were above a certain threshold.) Finally, they adde