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You're the centerpiece in a phenomenon not seen in 30 million years

You're the centerpiece in a phenomenon not seen in 30 million years

Economic Times06-06-2025

AP Earth's atmosphere has surpassed 430 parts per million (ppm) of carbon dioxide
For the first time in millions of years, Earth's atmosphere has surpassed 430 parts per million (ppm) of carbon dioxide, marking a new and alarming milestone in the ongoing climate crisis. According to the latest data from the National Oceanic and Atmospheric Administration (NOAA) and researchers at the University of California, San Diego, the global average CO₂ concentration in May 2025 exceeded 430 ppm—an increase of over 3 ppm from the previous year.
This record-breaking concentration is the highest observed in at least several million years, with some scientists suggesting CO₂ levels may not have been this high for tens of millions of years. The rapid rise is largely attributed to human activities, particularly the burning of fossil fuels, which release vast quantities of greenhouse gases into the atmosphere. The accumulation of CO₂ and other greenhouse gases acts as a heat trap, raising global temperatures and driving more extreme weather events such as heatwaves, droughts, storms, and floods.
Ralph Keeling, a climate scientist at the Scripps Institution of Oceanography, commented on the trend: 'Another year, another record. It's sad.' He emphasized that the speed of the increase is especially concerning, as it reflects a failure by nations to sufficiently curb emissions and slow the pace of climate change.
Recent years have seen some of the largest annual increases in atmospheric CO₂ on record. For example, between 2023 and 2024, the increase was 3.75 ppm—the largest one-year jump ever recorded, with the annual average reaching 422.8 ppm in 2024. The continued rise is fueled not only by fossil fuel combustion but also by reduced carbon uptake by natural sinks (like forests) and increased emissions from wildfires, such as those in the Amazon and Canada. In 2023, global wildfires alone emitted an estimated 7.3 billion tonnes of CO₂. The implications of these rising CO₂ levels are profound. Scientists warn that unless the build-up of greenhouse gases is slowed and eventually reversed, the world will continue to experience more severe climate impacts. The Intergovernmental Panel on Climate Change (IPCC) has stated that to limit global warming to 1.5°C—as outlined in the Paris Agreement—the annual increase in atmospheric CO₂ must slow to about 1.8 ppm per year. Current trends, however, show no sign of this happening.
'Until we reach net zero CO₂ emissions globally, world temperatures will continue to rise and cause increasingly severe impacts,' said Celeste Saulo, Secretary-General of the World Meteorological Organization. The record-breaking temperatures and extreme weather events of 2024, which killed thousands and displaced millions worldwide, underscore the urgency of the situation.

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Paris climate target ‘will never die', remains world's ultimate goal: Researchers
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  • Time of India

Paris climate target ‘will never die', remains world's ultimate goal: Researchers

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Small island states proposed the 1.5°C target in the late 2000s as a matter of survival – '1.5 to stay alive' – and since 2015, it has become the immediate goal in the fight to tackle climate change. However, the world is not currently on track to keeping warming below the Paris Agreement targets. Most countries are still burning large amounts of fossil fuels, which release emissions that cause the climate to warm. Global warming is expected to exceed 1.5°C before the end of the decade, near 2°C by 2050, and rise to between 2.6°C and 3.1°C over the course of the century. These projections have resulted in commentary that 1.5°C is 'dead' and calls from some researchers to determine the precise timing of when 1.5°C is crossed. Professors Rogelj and Rajamani argue that exceeding 1.5°C does not mean abandoning the goal or triggering a specific policy shift for emissions reductions or adaptation needs but working harder to limit overshoot – the amount of warming experienced above 1.5°C . 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X-Class solar flare triggers radio blackout across the US. See map
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timea day ago

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A powerful X-class solar flare from the Sun disrupted radio communications across large parts of the Pacific and the United States on Thursday, June 19, stated a Newsweek report. Captured by NASA's Solar Dynamics Observatory, the flare was recorded at 11:50 pm UTC. Classified as an X1.9 solar flare, the blast ranked among the most extreme solar phenomena. An extreme solar flare caused radio signal blackouts across the United States. See map The intense ultraviolet radiation from the flare caused a shortwave radio blackout affecting frequencies below 25 Megahertz (MHz). The blackout was most noticeable across the Pacific Ocean, with amateur radio operators in Hawaii and coastal areas particularly impacted. Map shows radio signal blackout caused by X-class solar flare(NOAA) Solar flare follows earlier June 15 event Solar flares are violent bursts of energy on the Sun's surface, capable of releasing as much power as a billion hydrogen bombs, NASA stated. Flares are rated by intensity with X-class representing the highest category. These can trigger planet-wide communication disruptions and long-lasting radiation storms. The Newsweek report stated that the X1.9 event followed an earlier M-class flare on June 15, which temporarily knocked out radio signals across North America at lower frequencies. Unlike the previous M8.3 flare, the one recorded on Thursday did not eject a Coronal Mass Ejection (CME), a massive plasma and magnetic burst, into space. However, scientists at NOAA's Space Weather Prediction Center warned that the explosion likely destabilized a large magnetic filament in the Sun's southern hemisphere. Also read: NASA astronauts make 'space sushi' aboard the ISS to cheer up sushi-craving crewmate Eruption may lead to rare aurora sightings at lower latitudes The filament is currently erupting and may trigger a CME, which could reach Earth in the coming days and spark geomagnetic storms. These storms could disrupt satellites and power grids, but also produce brilliant auroras, sometimes visible far beyond their usual polar range. NOAA explained that if a CME arrived at Earth, it could generate strong geomagnetic storms, leading to some of the brightest auroras extending toward lower latitudes. Last year, per the report, similar conditions led to sightings of the aurora borealis as far south as Japan. Auroras arise from charged particles from the Sun colliding with our atmosphere. This process causes atoms and molecules in the atmosphere to become excited; when these excited particles return to their lower energy states, they release this energy as visible light, creating the striking color associated with the northern lights. With solar activity on the rise in the peak of the current solar cycle, we will likely see more solar activity in the next several months. FAQs What caused the June 19 radio blackout? An X1.9-class solar flare from the Sun released intense ultraviolet radiation, disrupting shortwave radio signals, especially across the Pacific. Which areas were affected? The Pacific Ocean region, including parts of the United States and Hawaii, experienced signal disruptions on frequencies below 25 MHz. What is an X-class solar flare? X-class flares are the most intense category of solar flares, capable of causing global radio blackouts and radiation storms. Could this affect power grids or GPS? If a CME reaches Earth, it could cause geomagnetic storms that might impact satellites, GPS, and even power infrastructure.

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