Eco Nana

Have you ever stepped outside on a sunny day (it’s 78 today where I live!) and felt the warmth of the Sun on your skin? That sunlight is energy—and it’s what keeps our planet livable. But here’s the problem: Earth is now taking in more energy than it sends back out to space. Scientists call this an energy imbalance, and it’s the main reason our planet is warming. Scientists have been tracking this imbalance since the late 1980s. But things really improved in 2000, when Terra satellite began collecting detailed data using NASA’s CERES instrument. That mission gave us the first long-term, high-accuracy global record of Earth’s energy imbalance. How…

Scientists found that part of the southern Indian Ocean, the water off the west coast of Australia, is losing a lot of salt much faster than expected. Normally this area is one of the saltiest parts of the ocean, but now it’s getting fresher (less salty) very quickly — and that seems to be connected to climate change. You might ask, “Who cares?” Why Salt Matters in the Ocean Salt changes how heavy water is. This sinking and rising movement helps power giant ocean currents — sometimes called the ocean’s “conveyor belt.” These currents move heat and nutrients all around the planet. But now, research shows the salty region in…

When people talk about climate change, two gases usually steal the spotlight: carbon dioxide (CO₂) and methane (CH₄). But there’s another greenhouse gas quietly heating up the planet—nitrous oxide (N₂O)—and most people hardly ever hear about it. I live in one of the most diverse and vibrant agricultural regions in the state. Here, winegrapes, olive trees, berries, and vegetables grow side by side, set against rolling green hills—at least in the winter. Farming is part of everyday life here. And that’s exactly why nitrous oxide matters so much. It’s closely tied to how we grow food, and even though it’s often overlooked, it packs a powerful climate punch. What Is…

Earth’s ice might seem far away—at the top of the world or high on a mountain—but it quietly helps keep Earth livable. Frozen oceans reflect sunlight, glaciers store freshwater, and icy ground holds ancient carbon in place. Together, these frozen parts of our planet are called the cryosphere, and they act like Earth’s natural air conditioner. As 2025 comes to an end, scientists are taking a hard look at how that system is doing. The answer is sobering. From shrinking sea ice at the poles to retreating glaciers and thawing permafrost, Earth’s ice is changing faster than expected. What’s happening in these frozen places doesn’t stay there—it affects sea level,…

Have you ever noticed how bright our planet looks from space? Earth usually reflects sunlight like a giant blue-and-white mirror. But scientists have discovered something surprising: Earth is losing it’s shine and is actually getting dimmer. What “Getting Dimmer” Means Our planet has a property called albedo, which is the fraction of sunlight that gets bounced back into space. Earth has been losing its shine for decades, reflecting less light back into space—and the amount of light reflected by the Northern Hemisphere is decreasing more quickly than that of the Southern Hemisphere, recent research suggests. For a long time, scientists believed both hemispheres reflected roughly the same amount of light.…

https://www.nature.com/articles/s43247-025-02768-2As our planet heats up, the Arctic is getting greener. I just read an interesting study about how all those new plants—especially shrubs—could be changing what’s going on underground in the frozen soils known as permafrost. For four years, scientists in northern Greenland ran an experiment to see what happens when frozen soil is exposed to air and mixed with dead plant bits, called litter. They were trying to picture what the Arctic might look like as plants keep spreading north. The results were pretty wild: that extra plant material actually changed the DNA of the tiny microbes living in the soil! Those microbes got busier—and hungrier—breaking down old carbon…