{"id":522781,"date":"2026-03-08T15:40:09","date_gmt":"2026-03-08T15:40:09","guid":{"rendered":"https:\/\/www.newsbeep.com\/ca\/522781\/"},"modified":"2026-03-08T15:40:09","modified_gmt":"2026-03-08T15:40:09","slug":"scientists-weighed-earths-total-vegetation-with-disturbing-results","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ca\/522781\/","title":{"rendered":"Scientists ‘weighed’ Earth’s total vegetation with disturbing results"},"content":{"rendered":"

Earth\u2019s vegetation has shifted measurably northeast over recent decades, relocating the global center<\/a> of the planet\u2019s seasonal green growth.\u00a0<\/p>\n

The finding reveals that the living surface of the planet is reorganizing in response to environmental change, altering where the biosphere\u2019s yearly pulse now concentrates.<\/p>\n

Earth\u2019s vegetation is moving
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\n \"EarthSnap\"\/
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Decades of satellite observations show that the planet\u2019s annual wave of plant growth forms a moving balance point across continents and seasons.<\/p>\n

Analyzing that shifting balance, Prof. Miguel D. Mahecha, an environmental data scientist at Leipzig University<\/a>, demonstrated how the center of global vegetation has steadily migrated northeast.<\/p>\n

Year by year, the position of this global green<\/a> center has drifted farther from its earlier trajectory while maintaining the same seasonal cycle between hemispheres.<\/p>\n

That steady displacement compresses a complex planetary pattern into one measurable signal, opening the door to explaining what forces are pushing the biosphere\u2019s center of activity across the map.<\/p>\n

Where the wave travels<\/p>\n

Each year brought Earth\u2019s vegetation balance point<\/a> north in summer and south in winter, tracing a regular loop over land.<\/p>\n

Seasonal sunlight drove the green wave, the planet\u2019s yearly sweep of leaf growth, from north to south and back.<\/p>\n

Mid-July put the balance<\/a> point near Iceland, while late February, sometimes early March, parked it off Liberia on Africa\u2019s west coast.<\/p>\n

Because that loop stayed measurable, the new metric could reveal subtle changes even when local greening looked noisy.<\/p>\n

Turning leaves into mass<\/p>\n

To make the motion comparable across years<\/a>, the team treated leafier areas as heavier parts of the planet.<\/p>\n

That weighting created a center of mass, a balance point if all leaves had weight, for every day in the record.<\/p>\n

\u201cIf you then carefully place this globe into calm water, the centre of mass will always point downward,\u201d said Mahecha.<\/p>\n

Once the team had that daily point, they could compare seasons, decades, and even different vegetation measures on the same map.<\/p>\n

An eastward surprise<\/p>\n

Beyond the north-south swing, the center\u2019s route also moved east over time, pointing toward a changing global pattern.<\/p>\n

Greening hotspots in India, China, and Russia added extra pull in that direction, because dense leaves tipped the balance.<\/p>\n

Mahecha later said the persistent eastward movement of the vegetation center surprised the research team because the trend remained consistent across multiple datasets and seasonal cycles.<\/p>\n

Untangling why the eastward pull grew will take deeper regional work, since farming, forests, and climate all play roles.<\/p>\n

CO2 feeds Earth\u2019s vegetation<\/p>\n

One satellite-based analysis<\/a> linked recent global greening, a rise in vegetation density seen from space, to higher CO2.<\/p>\n

Extra CO2 can let plants make more sugars during photosynthesis, because carbon becomes less scarce inside leaves.<\/p>\n

Longer growing seasons and intensive land management also raised leaf cover in many regions, especially where water stayed reliable.<\/p>\n

Those boosts came with limits, since drought, wildfire smoke, and extreme heat can slow growth or kill plants outright.<\/p>\n

Northern lands dominate<\/p>\n

Northern Hemisphere land makes up most of the planet\u2019s vegetated area, so its changes weigh heavily on the global balance.<\/p>\n

A recent report<\/a> described widespread earlier spring growth and later fall slowdowns as temperatures rose.<\/p>\n

In the new tracking work, the green center kept moving north even during the Southern Hemisphere summer, not south.<\/p>\n

That one-sided pull helps explain why the north-south swing has started shrinking, which could affect seasonal timing worldwide.<\/p>\n

The pace speeds up<\/p>\n

Recent decades showed the fastest motion, with the green center racing north during the months it usually sits farthest south.<\/p>\n

From 1983 to 2021, the long-term northward drift ran roughly 1 to 1.5 miles each year. After 2010, the southern-season position jumped north by about 9 miles per year, far above earlier decades.<\/p>\n

Such acceleration means farms, forests, and wildlife face faster calendar changes than planners expect, raising flags for models and monitoring.<\/p>\n

What models show next<\/p>\n

To see where the compass might point next, the team ran the same tracking method on climate simulations.<\/p>\n

Six Earth system models, computer simulations linking climate with land and oceans, reproduced the broad north-and-east drift.<\/p>\n

Higher-emissions futures pushed the track farther east than north, suggesting regional leaf gains could outweigh pure temperature effects.<\/p>\n

Wide gaps between models remained, so the compass will need real-world observations to stay honest.<\/p>\n

The same math could track more than greenery, since any global map with ups and downs has a balance point.<\/p>\n

Ocean color, snow cover, and heat patterns could each form their own moving center, letting scientists compare systems side by side.<\/p>\n

Linking that motion to droughts, fires, or grazing could show which pressures nudge the global signal most.<\/p>\n

As the data stream grows, a single moving dot may become a quick health check for the planet\u2019s living surface.<\/p>\n

Watching a living planet<\/p>\n

Following the moving center turns the planet\u2019s yearly plant rhythm into something you can track in miles and direction.<\/p>\n

Better local measurements and sharper models will decide whether the northeast drift keeps accelerating or starts to stall.<\/p>\n

The study is published in Proceedings of the National Academy of Sciences<\/a>.<\/p>\n

\u2014\u2013<\/p>\n

Like what you read? Subscribe to our newsletter<\/a> for engaging articles, exclusive content, and the latest updates.<\/p>\n

Check us out on EarthSnap<\/a>, a free app brought to you by Eric Ralls<\/a> and Earth.com.<\/p>\n

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