(Feb 6, 2016) View Of Horizon At The Top Of Irazú.

Leighton Lum

This impending issue has been known for some time. I believe it has a role in the resurgence of nationalism, immigration debates, and isolationism in certain countries - a bit of preemptive door slamming… 

143 Million People May Soon Become Climate Migrants, World Bank Warns

Climate change will transform more than 143 million people into “climate migrants” escaping crop failure, water scarcity, and sea-level rise, a new World Bank report concludes.

Most of this population shift will take place in Sub-Saharan Africa, South Asia, and Latin America—three “hot spots” that represent 55 percent of the developing world’s populations.

This worst-case scenario is part of a ground-breaking study focused on the impacts of slow-onset climate, as opposed to more visibly dramatic events such as extreme storms and flooding. The report, Groundswell—Preparing for Internal Climate Migration, also shifts the focus from cross-border migration, which has drawn global attention as refugees and migrants flee war, poverty and oppression, to in-country migration, which involves many more millions of people on the move in search of viable places to live. The 143 million represent 2.8 percent of the three regions’ population.

by daviddoubilet

natgeo  Photograph by @thomaspeschak This is a marine iguana, but I think they should be called ‘Ocean Godzilla’ instead. These are our planet’s only lizards that feed in the ocean and despite their fierce, dragon like appearance they are very sensitive to climate change. They rely exclusively on cold water seaweeds for nourishment which die off quickly as the water becomes too warm. For more “Ocean Godzilla” pics follow @thomaspeschak

Fried Egg Jellyfish Are Kind of Adorable – & That’s No Yolk.

There are two species that hold the whimsical title of “Fried Egg Jellyfish”: Phacellophora camtschatica and Cotylorhiza tuberculata though the two are quite different from each other in all aspects beside appearance.

Phacellophora camtschatica is a huge jelly that prefers colder waters. It’s bell can reach up to 2 ft across and its dozens of tentacles reach over 20 ft long! If you don’t think this floating egg creature looks very menacing, you’d be right. It has a very weak sting and many small crustaceans take advantage of the jelly by riding on its bell (breakfast to go…?) while snatching up extra food.

Cotylorhiza tuberculata is a much smaller jellyfish that hangs out in warmer waters. It only reaches about 35 cm in diameter, so don’t go for this Fried Egg Jelly if you want a big breakfast. Unlike most jellyfish, C. tuberculata can swim on its own, without relying on the currents for movement. It’s sting (if you can even call it that) is so feeble that it has very little to no effect on humans at all. I mean, it does look like a breakfast food, after all… how powerful could it be? 

From Kane Lynch and our stats dept.

Packing for a Journey into the Twilight Zone

Submitted for your consideration: A team of researchers from more than 20 institutions, boarding two research vessels, heading into the ocean’s twilight zone.

The twilight zone is a dimly lit region between 650 and 3300 feet below the surface, where we’re unfolding the mystery of how tiny ocean organisms affect our planet’s climate.

These tiny organisms – called phytoplankton – are plant-like and mostly single-celled. They live in water, taking in carbon dioxide and releasing oxygen.

Two boats, more than 100 researchers from more than 20 partner institutions, and a whole fleet of robotic explorers make up the EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) team. We’re learning more about what happens to carbon dioxide after phytoplankton digest it.

The Equipment to Find Phytoplankton

Phytoplankton have predators in the ocean called zooplankton. They absorb the phytoplankton’s carbon, carrying it up the food chain. The EXPORTS mission will focus partly on how that happens in the ocean’s twilight zone, where some zooplankton live.  When phytoplankton die, sometimes their bodies sink through the same area. All of this carries carbon dioxide into the ocean’s depths and out of Earth’s atmosphere.

Counting Life

Studying the diversity of these organisms is important to better understand what’s happening to the phytoplankton as they die. Researchers from the Virginia Institute of Marine Science are using a very fine mesh net to sample water at various depths throughout the ocean to count various plankton populations.

Researchers from the University of Rhode Island are bringing the tools to sequence the DNA of phytoplankton and zooplankton to help count these organism populations, getting a closer look at what lives below the ocean’s surface.

Science at 500 Feet

Taking measurements at various depths is important, because phytoplankton, like plants, use sunlight to digest carbon dioxide. That means that phytoplankton at different levels in the ocean absorb and digest carbon differently. We’re bringing a Wirewalker, an instrument that glides up and down along a vertical wire to take in water samples all along its 500-foot long tether.

This journey to the twilight zone will take about thirty days, but we’ll be sending back dispatches from the ships. Follow along as we dive into ocean diversity on our Earth Expeditions blog: https://blogs.nasa.gov/earthexpeditions.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.

Trip to the Osa Pennisula

Trip

Rocks

Mangrove

Stolen

On Friday at around 5:50 am., we left for our first IFSA-Butler organized trip. The bus drive was hours long, but we made stops for breakfast and to see indigenous artifacts. We stopped at the Parque de las Esferas. Here, we saw large spherical rocks that were shaped by Costa Rica’s indigenous peoples hundreds and thousands of years ago. They shaped the rocks by placing them in streams or rivers and used smalls rocks of different shapes to hit them. They were used to make maps of the stars, commerce, and many other things. Unsurprisingly, over the years many myths have been created about their origins and purposes. Some people say that they were made by UFOs or gods.

Later after lunch, we got a boat tour of the Térraba-Sierpe Mangrove, the largest mangrove in Costa Rica. We saw many species of birds: Baltimore Orioles, turkey buzzards, woodpeckers, various species of herons, and many more as well as more wildlife like a Jesus lizard (but we did not see it walk on water as it was on a tree branch) and different species of mangroves such as the red and black mangroves. After about an hour and a half boat ride, we got to the resort called the Corcovado Adventure Tent Camp. After we were settled in, we went to the beach for a little bit. After dinner, we were told to go back to our tents and make sure that everything was still there. All of my stuff was still in our tent, but when I returned to the central pavilion, I learned that the guys in the tent next to ours had both of their bags stolen, including a wallet, a laptop, an EpiPen, and most of their clothing. After about 45 minutes, a group of us went on a night walk that lasted about an hour. When we returned, Rodney, our program director, had an announcement to make. He decided that since one of the thing’s stolen was an EpiPen for an allergy to bees and the student did not have another one with him, we would leave on Saturday right away breakfast, instead of continuing with the rest of the trip as planned and returning to Heredia Sunday night. On our way home Saturday, we stopped at a bridge over el río Tárcoles to look at the crocodiles that gather in the river below.