https://vehd.org/home daily 1.0 2025-11-02 https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/fdb7cac0-e70f-4021-82db-ef80e3b7a1e4/IMG_5351.PNG https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/72b9affe-511f-459b-b11e-d04506644c20/IMG_5871.JPG https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/8525c216-3261-48d7-8fa4-3737dc65aa06/IMG_0198.JPG https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/f08d170d-78bf-49d2-9160-2e48eb0ffe38/IMG_0829.jpeg https://vehd.org/clean-our-oceans daily 0.75 2025-10-16 https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/fc67800d-269f-4b7a-ad27-4ed226e76b47/fl18518607282-image-kuf774li.jpg 2016: Supporting The Ocean Cleanup - The state of our ocean Trash accumulates in 5 ocean garbage patches, the largest one being the Great Pacific Garbage Patch, located between Hawaii and California. About 80% of the debris comes from land-based activities in North America and Asia. Plastic bags, bottle caps, plastic water bottles, fishing nets, and Styrofoam cups make up a majority of the debris. While many different types of trash enter the ocean, plastics make up the majority of marine debris for two reasons. Plastic’s durability, low cost, and malleability mean that it’s being used in more and more consumer and industrial products. Plastic goods do not biodegrade but instead break down into smaller pieces. Almost all the plastics are micro plastics that are not visible to the human eye. They are intermingled with larger pieces of plastic like shoes and fishing gear. In the ocean, the sun breaks down these plastics into tinier and tinier pieces, a process known as photodegradation. Scientists have collected up to 750,000 bits of microplastic in a single square kilometer of the Great Pacific Garbage Patch—that’s about 1.9 million bits per square mile. Marine debris can be very harmful to marine life in the gyre. For instance, loggerhead sea turtles often mistake plastic bags for jellies, their favorite food. Albatrosses mistake plastic resin pellets for fish eggs and feed them to chicks, which die of starvation or ruptured organs. Seals and other marine mammals are especially at risk. They can get entangled in abandoned plastic fishing nets, which are being discarded more often because of their low cost. Seals and other mammals often drown in these forgotten nets—a phenomenon known as “ghost fishing.” Marine debris can also disturb marine food webs in the North Pacific Subtropical Gyre. As microplastics and other trash collect on or near the surface of the ocean, they block sunlight from reaching plankton and algaebelow. Algae and plankton are the most common autotrophs, or producers, in the marine food web. Autotrophs are organisms that can produce their own nutrients from oxygen, carbon, and sunlight. If algae and plankton communities are threatened, the entire food web may change. Animals that feed on algae and plankton, such as fish and turtles, will have less food. If populations of those animals decrease, there will be less food for apex predators such as tuna, sharks, and whales. Eventually, seafood becomes less available and more expensive for people. https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/bb019c55-5064-4f65-8c4e-cf97e3dd8b6a/1911-The-Ocean-Cleanup-BoyaninAsia-DvdK-1111149-960x640.jpg 2016: Supporting The Ocean Cleanup - Support The Ocean Cleanup The Ocean Cleanup was founded by Dutch inventor Boyan Slat based on a high school science project he started when he was 17 years old. Now, into its 5th year, The Ocean Cleanup develops technology with the goal of cleaning up 90% of the Pacific Ocean, the largest effort in history. The clean-up systems are innovative. It has a floater which looks like an outstretched arm that carries a rigid net underneath it that directs the trash towards a collection system. The Ocean Cleanup has been recognized internationally and Boyan Slat has been acknowledged as a significant innovator of our times. You can support The Ocean Cleanup by donating to them. Check out their website, donate page, and their products all made from recovered plastic! Sources: https://www.theoceancleanup.com https://www.nationalgeographic.org/encyclopedia/great-pacific-garbage-patch/ https://vehd.org/clean-our-air daily 0.75 2025-10-16 https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/0bb8af64-cf1e-43ce-a12f-9cc8c86b7437/global+Co2+levels.PNG 2019: Comparing CO2 mitigation by plants - The problem Carbon emissions have risen by 85% in the last 70 years and continue to rise. Global CO2 levels have risen by 45% (275 ppm to 400 ppm) since 1950. Each year about 4.6 million people are killed by dirty and hazardous air. That number is still rising and will keep rising if we do not act. https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/c3f5f89e-d507-4069-8507-fd23b36712b4/co2-emission-by-industry.PNG 2019: Comparing CO2 mitigation by plants - CO2 emissions are 76% of the total greenhouse gas emissions. Ironically, agriculture and forestry are responsible for a majority of the greenhouse gas emissions. What if plants could mitigate CO2 pollution on a large scale? https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/fb5f999a-10e5-4a80-8d85-12609afa8a64/comparing-co2-experiment-setup2.jpg 2019: Comparing CO2 mitigation by plants - The experiment Hypothesis: High efficiency plants (Snake Plant, Chinese Money Plant, and Parlor Palm) will be significantly better at absorbing CO2 when compared to house plants. Goal: Using MG811 CO2 sensor, low cost, high sensitivity, compare the efficacy of highly efficient CO2 absorbing plants to that of house plants. Data collection: Sensor sends data to Excel’s Data Streamer add-in every 2 minutes. The data is recorded and visualized using Excel charts. Challenges Plants take a long time to absorb CO2, data was collected over 8 hours Plants only absorb CO2 during the day; shorter winter days led to collection over several days Collecting the data while charging the laptop led to unreliable data and the laptop would run out of charge while collecting data, so I recorded the data at the start and end of each trial. https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/d3a574ad-4a0d-4ee8-ad01-8427473022ac/comparing-co2-data.PNG 2019: Comparing CO2 mitigation by plants https://vehd.org/forever-change daily 0.75 2025-10-16 https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/0f06ad33-983c-4d3a-967b-be826481eed8/Picture3.webp https://vehd.org/restore-our-habitats daily 0.75 2025-10-16 https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/1620086378245-QLI4U3Y9DPBU3Q21KWXM/6a00d834200ef553ef022ad389f695200c-800wi.jpg 2017: Restoring habitats - As part of the 5th grade citizen science project we were invited to focus on a specific issue affecting our community. My group focused on the issue of invasive plants on the banks of Thornton Creek. I wrote to the Mayor of Shoreline. I was pleasantly surprised when I received word back from Cameron Reed, Environmental Programs Specialist in the Shoreline Mayor’s office. The Mayor’s office recognized the significant impact of invasive plants along the banks of Thornton Creek and encouraged me to: Create a restoration plan for the area Apply for a mini grant of up to 5,000 dollars Talk to my school and work with the school because they have a mitigation plan running for the same area. https://vehd.org/indoor-pollution daily 0.75 2025-10-16 https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/aaa36131-9dff-4435-963a-393f730f8d8f/speck_on_glass_table_with_outdoor_aq.jpg 2017: Measuring indoor PM 2.5 pollution https://www.specksensor.com/ https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/1689869106828-5PRDDZEA3PIZN66LGDOW/image-asset.jpeg 2017: Measuring indoor PM 2.5 pollution https://vehd.org/about-vehd daily 0.75 2025-10-14 https://images.squarespace-cdn.com/content/v1/608eeefced45e2004fa085e4/f0e4d258-81c1-4049-b996-a29a78b411c4/Vehd+Reddy+Portrait+2B.jpg https://vehd.org/2022-2023-idear daily 0.75 2025-10-14 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