Scripps climate scientist Yassir Eddebbar takes you on an exploration of the ocean’s interior to reveal a fascinating phenomenon – oxygen minimum zones (OMZs).
Oxygen minimum zones (OMZs) are regions of the global ocean that present low dissolved oxygen concentrations. Although they represent only a small fraction of the global ocean volume, they are considered to be an important sink for fixed nitrogen, contributing 30-50% of the oceanic nitrogen removal. They are important sources of the greenhouse gases carbon dioxide (CO2) and nitrous oxide (N2O), the latter also involved in the destruction of stratospheric ozone.
Focusing on his work in the tropical Pacific, Eddebbar explains what causes OMZs, how they are likely to change in response to climate change, and their potential to impact marine ecosystems and fisheries as climate warms.
Watch Oceans Out of Breath: Oxygen Minimum Zones in a Warming Climate.
The Arctic is changing rapidly in response to global climate and economic activity and yet much of it remains unexplored with modern scientific techniques.
Jeff Bowman is a biological oceanographer who studies marine microbial communities. In this presentation at the Birch Aquarium at Scripps Institution of Oceanography he describes his group’s work in the Arctic as they seek to understand the ecological implications of changing sea ice conditions.
They are also preparing to participate in the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) Expedition, an unprecedented multi-national effort to study the high Arctic across a complete seasonal cycle.
Watch — Modern Oceanography and the Changing Arctic Ocean.
“What we do in my group is we zoom in on the aerosols.”
Vicki Grassian and her team look at aerosols at a microscopic level to determine their impact on our health and our climate. Aerosols can be mineral dust and sea spray from the ocean or created by human activity or stem from any number of sources. They can travel across the globe impacting people, animals, and the planet in their wake.
Grassian’s work seeks to understand how aerosols and other gases not only affect us but how we might harness them for solar geoengineering.
Watch — What is in the Air We Breathe? – Exploring Ethics
“When you talk about diversity of the soil, human beings we carry our soil with us. And we give that a very fancy term which is all the rage these days which is ‘microbiome.’ And as we see microbes diminishing in the soil, we are also seeing the same things happen in ourselves,” says Kelli Gray-Meisner, RDN.
Super blooms, extreme weather, fires, insects, and human health, these seemingly separate things impact each other – for better or worse. Join a panel of experts as they tease out the relationships being built and destroyed by climate change. They also share how we as individuals can work to limit negative impacts and create positive outcomes.
Watch — Climate Change: What it Means for Our Agriculture & Our Health – Future Thought Leaders Series Presented by the Berry Good Food Foundation
The Tibetan Plateau is home to unique, rare and endangered fauna and flora that has adapted to survival in this lofty, arid land. For thousands of years rivers originating here have nourished the civilizations stretching from Pakistan to China and throughout India and South Asia. Home to about one-third of the world’s population, this vast region is facing dramatic changes as the glaciers that both store and supply water shrink, and global warming brings new regimes and patterns in climatology.
What will these changes be? What are the mechanisms that cause them? How can so much of the world’s humanity adapt or prepare? And what will be the fate of the plants and animals that have for so long called this place home?
Explore how UCLA researchers are studying the causes and the effects these changes will bring to The Tibetan Plateau and all it touches.
Watch The Tibetan Plateau