Posted on Leave a comment

Seeing the COVID-19 Pandemic from Space

By Abigail Seadler,
NASA’s Earth Science Division

Source: NASA
Photos Source: NASA

Economic and social shutdowns in response to the COVID-19 pandemic have led to noticeable changes in Earth’s environment, at least for the short term. NASA researchers are using satellite and ground-based observations to track these impacts on our airlandwater, and climate. These datasets have been collected in a free and openly available online dashboard.

Average NO2 levels over San Francisco for the past 5 years
Source: NASA
Shidonna Raven Garden and Cook
NO2 levels over San Francisco in March 2020
Source: NASA
Shidonna Raven Garden and Cook

Nitrogen Dioxide Levels Over San Francisco, California

Nitrogen dioxide (NO2), an air pollutant, decreased significantly over urban areas during the pandemic. The left image above shows average NO2 levels over San Francisco for the past 5 years, and the right image shows NO2 levels over San Francisco in March 2020. These data are from NASA’s Ozone Monitoring Instrument (OMI). Credit: NASA COVID-19 Dashboard

The NASA COVID-19 Dashboard features data collected by Earth-observing satellites, instruments aboard the International Space Station, and sensitive ground-based networks. The global maps are searchable by several categories of observable change, including economic indicators, such as shipping and construction activity, and environmental factors, such as water quality and climate variations. Investigate the data layers yourself or take a guided tour of how NASA Earth scientists are studying – and learning about – the pandemic’s effects on the Earth system.

NASA scientists use many different tools, datasets, and methods to investigate COVID-related changes in the Earth system. Comparing complementary datasets on the dashboard helps reveal a deeper story of how the environment is changing due to COVID-related shutdowns.

satellite data of air pollution over California airport

Thermal data from the joint NASA-U.S. Geological Survey Landsat satellite show decreases in the urban heat island effect, a phenomenon where urban areas are significantly warmer than adjacent rural areas, during the pandemic. The left image shows temperatures over San Francisco in April 2018, while the right image shows temperatures over San Francisco in April 2020. Scientists found that large parking lots, highway corridors, and commercial rooftops were on average 10-15 degrees Fahrenheit (5-8 degrees Celsius) cooler from March to May 2020, compared to previous years. Credit: NASA COVID-19 Dashboard.
Source: NASA
Shidonna Raven Garden and Cook

For example, scientists at NASA’s Ames Research Center discovered that emptier parking lots near closed, non-essential businesses, in combination with cleaner air from less surface transportation, meant that heat from the sun radiating off dark asphalt and cement surfaces did not stay trapped near the ground as long. Instead, heat dissipated quickly, cooling the urban environment. Comparing the data to pre-pandemic years, scientists found that large parking lots, highway corridors, and commercial rooftops were, on average, 10-15 degrees Fahrenheit (about 5-8 degrees Celsius) cooler from March to May 2020.

The NASA COVID-19 Dashboard will be updated with more data and discoveries throughout the pandemic and beyond.

What does this information from NASA tell us about the impact of human activity on global warming? How can you help improve the environment? Do you ride a bike or recycle? Are you a Community Champion…read more about the environment below.

Shidonna Raven Garden and Cook

Share your comments with the community by posting them below. Share the wealth of health with your friends and family by sharing this article with 3 people today. As always you are the best part of what we do. Keep sharing!

If these articles have been helpful to you and yours, give a donation to Shidonna Raven Garden and Cook Ezine today.

Posted on Leave a comment

Spaceport America

Inside the risky venture of Spaceport America

Shidonna Raven Garden and Cook
Source: The Verge
Shidonna Raven Garden and Cook

Commercial Space Travel is here. What are the health implications? What will people eat in space if Elon Musk builds a city by 2050? What are your thoughts on space travel?

Share your comments with the community by posting them below. Share the wealth of health with your friends and family by sharing this article with 3 people today. As always you are the best part of what we do. Keep sharing!

If these articles have been helpful to you and yours, give a donation to Shidonna Raven Garden and Cook Ezine today.

Posted on Leave a comment

Global Warming

Weekly Arctic sea ice age between 1984 and 2016

Shidonna Raven Garden and Cook
Climate Change / Global Warming
Source: NASA
Shidonna Raven Garden and Cook

So, what are the health implications for humans when the earth warms up and loses ice as we can clearly see above? The list is endless. One of the most profound examples we received is considering how the temperature can affect your health. As the earth warms one of the things that occurs is extreme weather including extreme cold and hot temperatures but also storms. A few degree changes in our body temperature can send us to the hospital with a list of health complications which can become chronic if exposed to over time.

We are located in Norfolk, Virginia, USA where we experience flooding among other signs of global warming. Where are you located? What types of extreme weather or weather challenges do you face in your area? What does the weather person have to say in your area about the climate conditions in your area? Share your comments with the community by posting them below. Share the wealth of health with your friends and family by sharing this article with 3 people today. As always you are the best part of what we do. Keep sharing!

If these articles have been helpful to you and yours, give a donation to Shidonna Raven Garden and Cook Ezine today.

Posted on Leave a comment

Our Environment and Aerosol Black Carbons

NASA's Earth Minute: My Name is Aerosol

Shidonna Raven Garden and Cook
Aerosols and Climate Change
Source: NASA
Shidonna Raven Garden and Cook

According to NASA “There is only one aerosol — soot, also known as black carbon — that actually helps contribute to global warming by boosting the warming effects of greenhouse gases in the atmosphere.

In the US, diesel vehicles are the major source of soot, and filters on exhaust pipes can help reduce the amount that they pump into the air. In terms of sulfate aerosols, which are created by sulfur dioxide given off by power plants, the US and Europe have very successfully used sulfur dioxide scrubbers in power plants to reduce these emissions over the past 20 years or so. But we can definitely do more.

By reducing aerosol (soot) emissions, we can buy ourselves some climate time — about 5 to 10 years — while we work on reducing emissions of greenhouse gases such as carbon dioxide (CO2) in parallel. CO2, you see, hangs around in the atmosphere for an extremely long time, from decades to centuries, so even if we implement cuts today, it will take years for them to take effect. Aerosols, on the other hand, have much shorter lifetimes. If we work to reduce soot emissions now, which can enhance the global warming effect of CO2 by 20-50 percent, the climate impacts will be felt more rapidly.”

According to Bureau of Transportation Statistics “In 2014, over 16.4 million passenger cars and light trucks were sold in the United States [USDOC BEA 2015]. Diesel-powered cars accounted for about 3 percent of total auto sales in the United States, which is considerably lower than 50 percent in Europe [LUSSENHOP 2015]. In 2014, Volkswagen accounted for more than half of U.S. diesel car sales (figure 2) with diesel version of just three models—the Jetta, Passat, and Golf [COBB 2015].”

Did you know these Volkswagens were diesel vehicles? How do you think we (U.S.) is doing on lowering aerosol black carbon? How can we do better? Share your comments with the community by posting them below. Share the wealth of health with your friends and family by sharing this article with 3 people today. As always you are the best part of what we do. Keep sharing!

If these articles have been helpful to you and yours, give a donation to Shidonna Raven Garden and Cook Ezine today.

Posted on Leave a comment

COVID 19 and Climate Change

COVID-19 Mitigation Leads to Reduced Pollution Associated with Decreased Fossil Fuel Use

Shidonna Raven Garden and Cook
COVID-19 Mitigation Leads to Reduced Pollution Associated with Decreased Fossil Fuel Use
Source: NASA
Shidonna Raven Garden and Cook

Many people have commented on the not so unusual phenomena of the planet healing itself as the world halted to a stop. In deed climate change such as extreme temperatures of heat: we have seen 102 Degrees Fahrenheit in Norfolk, VA, USA this summer (2020) alone. Extreme heat can leave people exposed to stroke and heat exhaustion landing them in the hospital. So, as one might imagine people are thrilled to see the positive change in the environment. We have definitely felt the heat and experienced the flood waters here in Norfolk, VA, USA.

We know that COVID 19 remains at the forefront of people’s minds as we wait at the edge of our seats for a cure. While you wait read COVID-19: How to Prevent Getting Infected.

What measures have you and yours taken to stay COVID 19 free? There is so much we still do not know about COVID 19. Have any of your precautions included organic or natural remedies? Do you know of anyone who has tested positive for COVID? Share your comments with the community by posting them below. Share the wealth of health with your friends and family by sharing this article with 3 people today. As always you are the best part of what we do. Keep sharing.

If these articles have been helpful to you and yours, give a donation to Shidonna Raven Garden and Cook Ezine today.

Posted on Leave a comment

Space X, Space Food

ISS Update: Packing and Preparing Space Food (Part 1)

Shidonna Raven Garden and Cook
Space Food
Source: NASA
Shidonna Raven Garden and Cook

Just this past week NASA astronauts aboard SpaceX’s Crew Dragon capsule splash down in the Gulf of Mexico. With commercial space travel well on its way and the thoughts of colonization of space on the minds of many country leaders, have you given any thought to space food? Do you think you will ever go to space one day? What will you eat when you get there? Is space food healthy and nutritious? What are the body and health implications for eating space food? Share your comments with the community by posting below. Share the wealth of health with your friends and family by sharing this article with 3 people today. As always you are the best part of what we do. Keep sharing!

If these articles have been helpful to you and yours, give a donation to Shidonna Raven Garden and Cook Ezine today.