Positive Change - Blog Posts
NASA Spotlight: Carbon Cycle and Ecosystems Earth Scientist Erika Podest
Dr. Erika Podest is a scientist with the Carbon Cycle and Ecosystems Group in our Jet Propulsion Laboratory’s Earth Science Division and Visiting Associate Researcher in the Joint Institute for Regional Earth System Science and Engineering (JIFRESSE) at UCLA. Her research entails using satellite images to study Earth’s ecosystems specifically related to wetlands and boreal forests and how they are being affected by climate change.
Erika took time from studying our home planet to answer questions about her life and career! Get to know our Earth Scientist:
What inspires/motivates you?
I am inspired by the beauty of nature, its perfection and by the peace it brings me. My motivation is to make a positive impact on our planet by better understanding it and caring for it.
What first sparked your interest in Earth science?
I was born and raised in Panama, which is a country with an exuberant nature. Since I can remember, I was always surrounded by nature because my father was an adventurer who loved the outdoors and always took me with him to go exploring or simply to enjoy a nice relaxing day outside. This led me to develop a deep sense of appreciation, respect, and curiosity for nature, which sparked my interest to learn about it and pursue a career in Earth Science.
What got you interested in the study of Earth from space?
Early in my college years I was training for my private pilot’s license and during my solo flights I would take pictures of features on the surface from the plane. I was always amazed at the details the pictures showed of the landscape that were not obvious from the ground. This was the first step towards discovering that there was a field for studying Earth from above, called remote sensing and consequently my Masters and Ph.D. were focused in this field.
What technology, discovery, or policy do you think has the most potential to decrease humans’ environmental impact (e.g. wind turbines, carbon taxes, clean meat)?
I don’t think it is a matter of any one technology, discovery or policy. It is a combination of everything. Having an impact on climate change involves every level and direction, from the bottom up at the individual, grassroots and community level to the top down at the policy level. As individuals, I think it is important to educate ourselves about climate change (I suggest climate.nasa.gov). We all have the power to make a positive change by speaking up and making informed decisions about our consumptive habits.
What’s a fact about the role of wetlands and boreal forests in the global ecosystem that you think would surprise people?
Wetlands provide a vital role in carbon storage. Even though they cover about 5-8% of the Earth’s land surface, studies indicate that they contain a disproportionate amount of our planet’s total soil carbon, about 20-30%. In addition, they are like the arteries and veins of the landscape, acting as water sources and purifiers and helping in flood control. They also protect our shores and harbor large amounts of biodiversity.
Boreal forests are found in the uppermost northern hemisphere (Alaska, most of Canada, Russia, Scandinavia and northern Asia) and account for about 30% of the world’s forest cover. These forests lock up enormous amounts of carbon and help slow the increasing buildup of carbon dioxide in our atmosphere. In their peak growth phase during the northern spring and summer, the worldwide levels of carbon dioxide fall and the worldwide levels of oxygen rise.
Can you describe a typical day on a research trip?
It depends on the research trip. For example, one of my more recent ones was to the Peruvian Amazon where we went upriver on a boat for three weeks on a major tributary of the Amazon River called the Ucuyali River. I was with a team of eight researchers and we were studying the wetland ecosystems of the Pacaya-Samiria Natural Reserve, which entailed making vegetation measurements and assessing inundation extent to validate our scientific findings from satellite observations. We camped for most of the trip and a typical day entailed waking up at around 5:00 am with a symphony of sounds that emerged from the forest, including monkeys. We had breakfast and set off from base camp into the forest (~1 hour walk) to work an 8-9 hour day with a short lunch break (we had packed lunches) at noon. At the end of the day I’d be drenched in sweat, sunscreen, insect repellent, and dust and I’d bathe with water from the river, which was as brown as a milk chocolate bar. It was the most refreshing and cleansing feeling! The day would close with dinner followed with a discussion of the measurements to be collected the following day. Lights were out by 7:30 pm (which seemed like midnight) and I’d re-emerge myself into my tent in the dark tropical night surrounded by the sounds of the forest, until the next morning.
What are some of the most important lessons you’ve learned in life?
That it is important to be patient, humble and thankful.
Do you have any secret skills, talents, or hobbies?
Great question! I do not have any secrete skills or talents but I do have a couple of hobbies. I play the piano, though I am still a novice. I love windsurfing. It is an amazing feeling to skim over the water at fast speeds (I’m also an adrenaline junkie). Finally, I am fascinated by magic card tricks and whenever I have some free time I like to learn a new trick.
What do you enjoy the most about your job?
I enjoy constantly learning about our natural world and how it works. I also really enjoy communicating my work to students and to the general public. I find it especially rewarding when I can educate people and motivate students to consider careers in science.
Erika, thank you for your time and everything you do to keep our home planet safe!
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Give-away shops
I'd like to tell you all the story of Jan's give-away shop.
The story:
Jan was a guy who lived in my hometown. Financially speaking, he was well-off: he owned the house in which he lived alone, and had gathered a lot of stuff throughout the years.
One day, Jan realised all of this stuff wasn't making him happy. He decided to move to a small apartment and to get rid of most of his possessions.
Jan also realised the privileged life he led: he owned much more than he needed, and was able to move on the fly just because he felt like it.
All of this made Jan decide to open up a give-away shop. He moved everything he didn't need to his living room, simply opened up his front door, and told everyone they could come and pick up whatever they wanted for free.
His friends declared him an idiot: humans are selfish, they said, and would just take his valuables and sell everything they'd gotten from him. They were wrong. Sure, some people did this, but they were only a small part of those who came.
Those who had less than Jan (including yours truly) came by and found things they needed but had been postponing to buy because they couldn't afford to. Others came to pick up things they could use for their charities, or for the classrooms they had to teach on a too low budget.
The biggest surprise was how Jan never ran out of things to give away: rather than taking things, a lot of people started donating items they didn't need anymore!
Objects weren't the only thing people donated: Jan quickly amassed a team of dedicated volunteers to run the shop for him whenever he was absent.
And that's the story of how my town got its first give-away shop. Unfortunately, the shop doesn't exist anymore: they closed down after about five years because Jan eventually had to sell his house.
His shop has left an important impact on my town: inspired by his shop, we now have a thriving freecycle community, town hall frequently hosts give-away markets (flee markets where everything's free), and individuals have been putting up give-away cabinets, fridges, and libraries all over where people can leave their unused goods, leftover food, and unread books for others to enjoy.
The take-away:
Not all of us are as privileged as Jan: if we were, we wouldn't have much need for projects like these. However, we can still learn from his story!
If you've got an unused cabinet lying around, why not turn it into your own give-away corner? If you work in event planning, maybe consider hosting a give-away market some time. Do you work at a library or a community centre? Those are the perfect spots to put a give-away library or a leftovers fridge: just make sure to keep an eye on anything food-related and to clean out expired goods when necessary.
Another popular variation on this idea are plant cuttings corners and seed banks. These are a great way to share native plants with fellow gardeners to improve the biodiversity in your neighbourhood.
If this post has inspired you, try petitioning your town for projects like these: they're often welcomed because they don't cost much to set up and can have a big positive impact on both your community and the environment.
(Image source) [ID: a small outdoors wooden construction with a see-through plastic roof containing a cupboard with toys, cookwares, and shoes, a hanging rail with clothes, a shelf with books, a bulletin board, and a box and a bag. The text "Give Box: sharing is caring" is painted at the top of the shed, and purple flowers and red hearts are painted on its sides.]
During the 2008 recession, my aunt lost her job. Her, her partner, and my three cousins moved across the country to stay with us while they got back on their feet. My house turned from a family of four to a family of nine overnight, complete with three dogs and five cats between us.
It took a few years for them to get a place of their own, but after a few rentals and apartments, they now own a split level ranch in a town nearby. I’ve lost track of how many coworkers and friends have stayed with them when they were in a tight spot. A mother and son getting out of an abusive relationship, a divorcee trying to stay local for his kids while they work out a custody agreement, you name it. My aunt and uncle knew first hand what that kindness meant, and always find space for someone who needed it, the way my parents had for them.
That same aunt and uncle visited me in [redacted] city last year. They are prolific drinkers, so we spent most of the day bar hopping. As we wandered the city, any time we passed a homeless person, my uncle would pull out a fresh cigarette and ask them if they had a light. Regardless of if they had a lighter on hand or not, he offered them a few bucks in exchange, which he explained to me after was because he felt it would be easier for them to accept in exchange for a service, no matter how small.
I work for a company that produces a lot of fabric waste. Every few weeks, I bring two big black trash bags full of discarded material over to a woman who works down the hall. She distributes them to local churches, quilting clubs, and teachers who can use them for crafts. She’s currently in the process of working with our building to set up a recycling program for the smaller pieces of fabric that are harder to find use for.
One of my best friends gives monthly donations to four or five local organizations. She’s fortunate enough to have a tech job that gives her a good salary, and she knows that a recurring donation is more valuable to a non-profit because they can rely on that money month after month, and can plan ways to stretch that dollar for maximum impact. One of those organizations is a native plant trust, and once she’s out of her apartment complex and in a home with a yard, she has plans to convert it into a haven of local flora.
My partner works for a company that is working to help regulate crypto and hold the current bad actors in the space accountable for their actions. We unfortunately live in a time where technology develops far too fast for bureaucracy to keep up with, but just because people use a technology for ill gain doesn’t mean the technology itself is bad. The blockchain is something that she finds fascinating and powerful, and she is using her degree and her expertise to turn it into a tool for good.
I knew someone who always had a bag of treats in their purse, on the odd chance they came across a stray cat or dog, they had something to offer them.
I follow artists who post about every local election they know of, because they know their platform gives them more reach than the average person, and that they can leverage that platform to encourage people to vote in elections that get less attention, but in many ways have more impact on the direction our country is going to go.
All of this to say, there’s more than one way to do good in the world. Social media leads us to believe that the loudest, the most vocal, the most prolific poster is the most virtuous, but they are only a piece of the puzzle. (And if virtue for virtues sake is your end goal, you’ve already lost, but that’s a different post). Community is built of people leveraging their privileges to help those without them. We need people doing all of those things and more, because no individual can or should do all of it. You would be stretched too thin, your efforts valiant, but less effective in your ambition.
None of this is to encourage inaction. Identify your unique strengths, skills, and privileges, and put them to use. Determine what causes are important to you, and commit to doing what you can to help them. Collective action is how change is made, but don’t forget that we need diversity in actions taken.