Magical Carbon Dioxide (CO2) drawdown right underneath your feet!

       Since I was a little child, I remember playing with rocks. I was digging for them, grabbing or throwing them on the ravine, or quebrada, right in front of my house back in Puerto Rico. Sitting at big rocks while the females of my street and I cleaned clothes after a Hurricane at the quebrada was another way I found a connection with rocks. However, it was not until very recently that I found out how incredible and magical rocks are for our mother earth. As an environmental educator who is recently learning scientifically how rocks play a role in mitigating climate change, I was intrigued by Hilley & Porder’s (2008) article. The first sentence of the article states that silicate weathering is “the most important regulator of atmospheric CO2 over million years timescales” (p.16855).  With this brief blog post, I will first define silicate and silicate rocks, explain silicate weathering, and conclude with summary of the blog post. I am looking to write another brief blog post later on in regards to climate change and the relation to the Latino community. In the mean time, I encourage all of you to search and ask yourselves how does climate change relate to our Latino community and culture.

       While remembering my times climbing the rocks back in my barrio in Puerto Rico to yell “¡Tarzan y Chita!”, I ask myself now, what rock was I on top of? How did it form? Is the rock a silicate rock? I am hoping that the following information can help me find answers to some of these questions. Rocks not only may bring us together to build, play, or throw, but they hold vast history through their physical formation and decomposition. Rocks are made up of minerals and elements and/or a combination of elements.  Two elements make up more than 70 percent of the surface of earth, Oxygen (O) and Silicon (Si) (Skinner & Murk, 2011, p. 65). Silicate is the term for minerals that contain the silicate anion (SiO4)4- and are the most abundant of all minerals (Skinner & Murk, 2011, p. 65).

     Rocks have this amazing capacity to draw down CO2 by the process of silicate weathering. Weathering is the “decomposition and disintegration of rocks by chemical, physical, and biological processes” (Molina, n.d.).  Therefore, silicate weathering is the decomposition and disintegration of rock containing silicate anion (SiO4)4-. What occurs during the weathering is what makes this process magical. The release of Calcium (Ca) and Magnesium (Mg) stored in silicate minerals are the connection between silicate weathering and CO2 sequestration (Hilley & Porder, 2008, p. 16859).  The release of Ca from silicate minerals creates a chemical reaction between Ca released and CO2 present in acid rain, which becomes calcium carbonate (CaCO3) (Jordan, personal communication, 2015). This conversion of Ca + CO2 = CaCO3 means that the calcium in the silicate rocks locks up CO2 leading to less CO2 in the atmosphere. By having less CO2 in the atmosphere, global temperature rise is limited, and we can keep enjoying mother earth in our recreational activities, keep admiring nature in many different ways, and keep sharing our stories in connection to our culture with the outdoors: truly conserving our cultura. As we enjoy hiking, teaching and learning while we are in interacting with mountains, I would encourage you all to remember that in the large mountain belts, series of parallel mountains, is where approximately 50% of the CO2 drawdown occurs (Hilley & Porder, 2008, p. 16855). This chemical reaction right underneath our feet is a magical interaction which leads us to learn more and be awed by mother earth.

      While reminiscing personal interactions with rocks back in Puerto Rico while reading Hilley & Porder’s article, I was able to see a magical processes that mother earth does. The chemical connection between Ca and CO2 to transform into CaCO3 leads to draw down of CO2 in the atmosphere. Drawing down CO2 helps with minimizing CO2 in the atmosphere, naturally mitigating  climate change. This process does take millions of years, which we may not even be able to study or experience. This is important for us to learn about how nature’s process to heal herself, however, there are more damages being done and we, as human, have to play a role in helping her out. By connecting to our roots, culture, and ways of interacting with nature, we are taking a closer step to help mother earth mitigate climate change. What makes silicate weathering magical is that it does take place while we interact with rocks whether we are building, playing, throwing, or admiring from our hikes. When you hold a rock, take a closer look and give thanks to the rock for being what it is and its part of the natural regulation process to drawdown CO2 from the atmosphere.

References

Hilley, G. & Porder, S. (2008). A framework for predicting global silicate weathering and CO2 drawdown rates over geologic time-scales. Proceedings of the National Academy of Science 105(44): 16855-16859 (November 4, 2008).

Molina Garza, R. (n.d.). Lecture: Weathering. [PDF document].

Retrieved from: http://www.geociencias.unam.mx/~rmolina/documents/LECT2.pdf

Skinner, B.J. and Murck B.W. (2011). The Blue Planet: An Introduction to Earth System Science. (3rd ed.). Hoboken, NJ: Wiley & Sons.


Bay Nature Co-Founders Honored at CGF Gala

On October 4, 2015, the Committee for Green Foothills honored Bay Nature co-founders David Loeb and Malcolm Margolin (publisher of Heyday Books) for their significant contributions to the Bay Area nature community, and donated a gift to the nonprofit Latino Outdoors in their honor.

“These publishing icons have challenged readers to see our landscape and our place in it with a fresh perspective. Though their work they have shaped and expanded the community of people who love and speak for nature.”
— Megan Medeiros, CGF Executive Director & Jeff Segall, CGF Board President

Read More


My First 3,000 Feet! ~ By Frank Barragan

Sandstone Peak Hike Morning

I don’t make it a habit to wake up at 6 am on the weekends. Especially Sunday! I mean, who does that?? Crazy people! That’s who!!

But this Sunday would be unique. It would be something really special; an exhausting, exhilarating, challenging adventure.

As I lay in bed, rudely awakened by my iPhone alarm, I had to decide if I was going to do this or not. I was supposed to go with a group, but in the end. I would be taking on this adventure, all by myself!

I was actually a little nervous that morning. Sure, I’d been on hikes before, but hikes I knew, and typically no more than a couple of miles. This would be a 6 mile trail with a pretty solid incline.

Being overweight doesn’t help. Having shortness of breath due to mild asthma doesn’t help either. And having flat arches is the worse, especially when you’re packing extra weight. When your feet get tired you get these extremely sharp pains right in the middle of your arch that feels like you’re being stabbed right in the middle of your foot!!  But when you’re determined to do something, you find a way to do it, no matter how much your body fights you!

So I got up, packed some snacks, a large water bottle, my sunscreen and off I went. I would have to drive deep into one of the mountains to access the trailhead. As I drove out there, finding the location pointed to by my iPhone’s GPS, it seemed like a dead end, not a trail head. I was about to turn back around and go home gleefully! But, I’m a MexiCAN, not a MexiCAN’t. So I drove about 500 feet and finally ran into the trail head.

I removed all my valuables from my car, as the warning sign stated, locked my car and off I went. I wasn’t sure just where i was going, but the entrance to the trail was well marked.

My nerves were a lot calmer now and I was taking in the beauty that is the Santa Monica Mountains. A breathtaking, 7am view due East.

I wasn’t actually sure if the trail was 6 miles in and 6 miles out, or 6 miles altogether. But by that time it didn’t really matter. Time to keep on keepin on!

Sandstone Peak Hike Hill I trekked for what seem to be an eternity. I looked at my watch, and it had only been an hour. At that pace, I figured it would take me at least 2 more hours to get to the top of this beautiful hike.

I pressed on, little by little, taking breaks often to let my flat feet and my weak lungs a rest. Lucky for me there was plenty of shade along the way because this was a HOT day!

California had been having these ridiculously global warmed days this summer that were blistering with a smoldering of humidity!

I must have reached several plateaus on the way up and every time I thought, am I there yet? Am I there yet??  My feet aching, my lungs burning, and my water running out. I knew I should have brought 2 bottles! Nonetheless, I couldn’t give up. I had to push myself.

I saw the signs, stating the peak was about 2 more miles. I cringed, but I collected myself and moved forward. The scenery was beautiful. The stillness of the air, exquisite. Nature, I felt, could cure almost anything!

I finally made it to the top, out of breath and nearly out of water, but I made it!! And it was all worth it.

If i had to do it all over again, I would do it.

I climbed onto the precarious large set of rocks at the top, managed to perch myself into a spot and took in the beauty of looking down at the Conejo Valley from 3000 feet above ground. Spectacular doesn’t even seem like a justified word to use; magnificent maybe.

I would use extraordinary, but I think that word has lost it’s meaning from overuse. Whatever it was, it was one of those once in a lifetime moments where you feel like you’re on top of the world and you kind of sort of are!

Time slows down up there. You take it all in, relax, and sit still with your thoughts and feelings. You let go of everything. This is the place of where epiphanies happen.

There were others there, but less than a handful at a time. I made some small talk before signing the Sandstone Peak log book. After about an hour of calmly relaxing with the wind at my back, the Pacific Ocean at my fingertips and dozens of mountains across the  way, I was ready to descend.

I had ran out of water by this time, and the weather was starting to get a little brutal. The way down proved to have no shade and was steeper, with a lot of loose gravel. It was challenging heading down. I had to watch every step carefully all while trying to maintain my thirst at bay.

Fortunately the way down was shorter, because it was steeper.

Frank BarraganAlthough I didn’t feel ill, I kept kicking myself for not bringing sufficient water and becoming parched most of the way down the hill.

After what seemed like an eternity (a different eternity), I saw the parking lot within site. I sprinted down the trail and tried reaching my car as fast as possible. I had to get to it, and head somewhere to buy some water. I had none left in my car.

I finally arrived at my visor-less protected car, relieved, exhausted, uber-parched. Yeah, but did you die??? No, not really!

I headed off to the nearest gas station 10 miles away. Grabbed multiple cans of various non-carbonated drinks, and proceeded to pound them like a college student at Oktoberfest.

My legs were weak, my body tight, my feet exhausted. But my mind was operating at 100%.

There’s nothing like the feeling of overcoming something you thought you couldn’t. It’s empowering. I believe it increases your willpower and your intestinal fortitude to pursue what most people won’t. I prove to myself once again, that I’m not a quitter. I prove to myself that I CAN do it, and that in the end, it is ALL worth it!

Sandstone Peak Overlook

Frank Barragan has been hiking on and off for about 5 years. He lives in the San Fernando Valley (Los Angeles) where he owns a small Web Design business. He loves to hike, meet new people, and volunteer his time to various non-profit organizations. Frank is also a member of Toastmasters where he has honed his public speaking skills and is working towards becoming a professional speaker.