Every raindrop that lands on Germany leaves through a handful of rivers. Watch each watershed find its exit. Data: HydroSHEDS/BasinATLAS, Copernicus GloFAS. #germany #maps #dataviz

By July, about a third of California crowds into a single blistering class. The fog-cooled coast and the high Sierra are almost the only ground that resists it. Two variables, one colour: warmth and rain, 30-year normals. #dataviz #cartography #climate

Greenland looks the size of Africa on the map you grew up with. It's not — Africa is 14x bigger. That's Mercator (1569): wrap the globe in a cylinder, unroll it, and the poles don't survive the trip. Hold one compass bearing though, and your course is a straight line. #dataviz #maps #geography

California's commonest ground is at sea level. Its median is 699 m. Terrarium DEM on an equal-area grid, so the pile IS the distribution of land area by height. #dataviz #maps #geography

How much of Britain and Ireland do you reckon is woodland? The green stripe is the answer. 10 m land cover on an equal-area grid, so the stripes ARE the shares. Among the least-wooded places in Europe. #dataviz #maps #britain #ireland #landcover

While the Arctic Ocean is freezing solid, Antarctica's ice is nearly gone, same week, opposite poles, flipping completely twice a year. A full year of daily NOAA/NSIDC sea ice data, side by side. #Arctic #Antarctica #SeaIce #ClimateData #DataViz

By July two thirds of Iberia sits in one climate class: the hottest, driest square on the grid. The Cantabrian coast and the Pyrenees are almost the only ground that stays green. Colour is temperature and rainfall at once, 30-year normals. #dataviz #cartography #Spain #Portugal

Southeast Asia has lost more forest since 2000 than the entire United Kingdom. But 2025 was its lowest annual loss since 2011. Hansen Global Forest Change v1.13, 2001 to 2025. #dataviz #deforestation #climate #maps

Four Caribbean capitals top a million people. Santo Domingo's metro (4.6M) beats Port-au-Prince and Havana. Population density across Cuba, Hispaniola, Puerto Rico and the Lesser Antilles, from Kontur's H3 hexagons. #dataviz #caribbean #maps #population

E. China & Korea, combed: 35,000 strands follow the ERA5 winds, colored by surface temperature — heat pooling on the plains, sea-cooled coasts, June 2026 hour by hour. Concept: u/thejeran (reddit) #dataviz #climate #China

Half of Iberia stands higher than 622 metres — and it isn't the mountains doing it. Every pixel of Spain and Portugal sorted by its own elevation; the pile lands on the Meseta. Only ~0.6% clears 2,000 m. #Spain #geography #dataviz #elevation

How much of the sky is actually hazy with smoke or dust? A year of daily CAMS aerosol optical depth draped on the unfolded globe. The hazy share of Earth's atmosphere swings from ~7M km2 on a clear stretch to ~44M at the worst of it. Data: Copernicus CAMS #dataviz #climate #wildfire

Can you find anywhere in Egypt that isn't the river? Fifty years of population, 1975 to 2025. Almost everyone lands on one ribbon of light

Guess which stripe is biggest before they finish stacking. Nearly half of Iberia is rangeland. Crops and trees almost exactly tied. Only about 5% built on. Equal-area grid, so a pixel count is an area measurement: stripe height is exactly that class's share. #dataviz #maps #GIS #Spain #Portugal

Two of the dark bands on this map are world wars. The third one is now. France had 610,186 births in 2025, the fewest since 1942. As a rate, second lowest in 165 years. Only 1916 was lower. Data: @hmdatabase.bsky.social #dataviz #France

The Ganges moves about 17 times more water in August than in February. Every river in the Ganges-Brahmaputra basin, one frame a day. Width is daily discharge, colour is water temperature. Data: GloFAS, DynQual, HydroSHEDS #dataviz #hydrology #rivers #India

A 100 million year old coastline still decides Alabama's election map. Cretaceous sea → chalk → Black Belt soil → cotton → 1860 census → today's blue crescent. One line through all of it. #maps #geology #dataviz #history

Where does Mexico actually live? From the border down to Panama, the desert north stays flat, then one valley erupts. Mexico City is 23 million people in a single mountain basin. Height and colour are people per km2, from Kontur population hexagons. #dataviz #maps #mexico

Half of all CO2 since 1900 has been burned since 1995. Each country drawn like a tree: dark rings = long ago, bright = recent. The US is almost all core

Antarctic sea ice swings by more than 6x every year, 2.8M km² in March to 18.9M km² by September, an area bigger than Russia, frozen and gone within months. One frame a day, NOAA/NSIDC satellite data. #Antarctica #SeaIce #ClimateData #DataViz

Where does the ocean actually turn green? A year of daily NASA chlorophyll-a on the Spilhaus projection — the world ocean as one piece. Deep navy = clear water, bright green = bloom. The dark cap sliding pole to pole is polar night: satellites can't see. #dataviz #ocean #phytoplankton

Which hemisphere greens up faster — can you tell just by watching? A year of NASA MODIS daily vegetation data mapped across two stacked hemispheres, Jul 2025–Jul 2026. #maps #dataviz #earth

South Asia's June, combed: 35,000 strands follow the ERA5 winds, colored by surface temperature. Pre-monsoon heat bakes the plains gold under the Himalaya's blue wall — then the monsoon arrives and the whole coat turns. Concept: u/thejeran #dataviz #climate #monsoon #India

Portland never passed 51. A town of 13,000 up the road hit 534. Ten days of Oregon wildfire smoke, GOES-18 every 20 min. Every extreme number belongs to a small inland town. #dataviz #wildfire #airquality #Oregon

South America has lost more forest since 2000 than the entire area of Colombia. The worst single year in the whole record was 2024. Hansen Global Forest Change v1.13, 2001 to 2025. #dataviz #deforestation #amazon #climate

Which part of the New York metro do you think lost value since 2019? Not the far suburbs — the middle. Manhattan is down since Dec 2019, while the ring around it climbed as much as 80%. The money didn't leave New York, it moved to the edges. Data: Zillow ZHVI #dataviz #NYC #housing #maps

Which way up does this map go? Fuller's answer: there isn't one, and no country sits on top. The Dymaxion map wraps the globe on an icosahedron, then unrolls it so every cut lands in ocean. The land comes out whole. #maps #cartography #dataviz

France just had its brownest midsummer in 27 years of satellite record, while Spain and the Balkans sit near their greenest. Three quarters of France is below normal for the date, and it is running 3.5x its recent average for active fire. Data: NASA MODIS + FIRMS #climate #France #drought

Six days of fire in the Sierra de Gredos, west of Madrid — watched hour by hour from space. ≈324 km² burned.

On July 16 one smoke cloud covered this whole frame. Cleveland measured 452 ug/m3. Boston measured 18. It runs through the nights too: the plume vanishes after dark, the embers don't, and by sunrise the smoke has moved downwind. #dataviz #wildfire #airquality