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1 giorno fa · The history of life on Earth traces the processes by which living and fossil organisms evolved, from the earliest emergence of life to present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species ...
2 ore fa · The International Day for Biological Diversity provides an opportunity to highlight the critical role that biodiversity plays in maintaining the balance of ecosystems. By emphasising the need for coordinated conservation efforts, this day aims to inspire individuals, communities, and nations to take action to safeguard Earth’s biodiversity.
6 ore fa · Current research suggests that humans have only identified about 20% of the species on Earth. This implies that as much as 80% of Earth’s species are waiting to be discovered.
6 ore fa · Rosier outlooks did not reflect reality, and this reassessment by dozens of experts was long overdue, he added. “We feel that the actual data estimating rangelands degradation around 25 per cent is severely underestimated,” he said. “We think that almost 35 -– even 50 per cent –- of rangelands are already degraded.”.
6 ore fa · The Deep Roots Of Astronomy In Latin America. By observing the cosmos, Indigenous peoples precisely measured natural phenomena like solar eclipses, leap years, and El Niño. by Santiago Flórez, on May 22, 2024. At a solar observatory in the Maya city of Xochicalco, in Mexico, sunlight passed through a disk at ground level and shined down a ...
3 ore fa · Representational Image- Reuters. The United States is on track to establish a domestic rare earth supply chain to meet its defence needs by 2027, a senior defence official said on Wednesday. The US has been driving the build-out of a global supply chain for rare earth, metals used in magnets for green energy industries and defence, beyond ...
3 ore fa · The U.S. has assessed that Russia launched what is likely a counter space weapon last week that's now in the same orbit as a U.S. government satellite, the Pentagon said.
