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The wildfires, floods, and heatwaves: Understanding the science behind climate change

The stories we tell today will define the world that future generations inherit. Will they look back and see a world that acted in time, or a world that failed to change until it was too late?

Image credit: Gerd Altmann from Pixabay
Dipin Damodharan

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In the heart of the Amazon rainforest, one of the most biodiverse places on Earth, a massive wildfire raged through the thick, lush greenery. This wasn’t just any fire; it was a calamity that consumed more than 17 million animals in its path, a chilling reminder of how the destruction of nature can reverberate across ecosystems. The Amazon, often referred to as the “lungs of the Earth,” plays a pivotal role in managing the planet’s climate. Yet, the actions of humanity—deforestation, illegal logging, and deliberate fires for agricultural purposes—have not only caused immeasurable loss to wildlife but have also accelerated climate change. The forest’s destruction led to a dangerous feedback loop, intensifying global weather patterns in ways that humans had never anticipated.

Fast forward to 2018, and the monsoon rains that battered Kerala, a state in India, were an equally dire omen. What began as an ordinary August downpour escalated into one of the deadliest floods in the region in almost a century. Rivers overflowed, breaking through dams and inundating vast swathes of land. Entire towns were submerged. Hundreds of lives were lost, and the devastation reached far beyond the physical damage, triggering social and economic upheaval. The aftermath left thousands homeless, as people sought refuge in makeshift shelters. The floods in Kerala were not an isolated incident; in fact, they were a warning from nature, signaling a world grappling with extreme weather events, made worse by human-induced climate change. The same was the case with 2024 Wayanad landslides.

And this global pattern of violent weather doesn’t stop in the tropics. In recent years, a blistering heatwave has swept across parts of North America. The US and Canada, known for their cold winters, have experienced record-breaking summer temperatures, an anomaly that scientists have linked directly to climate change. Oregon, once known for its temperate weather, saw the largest wildfire in its history, spurred by the heatwave. This was not just a local disaster—it was part of a larger, worrying trend in which global warming is creating the conditions for wildfires, floods, and heatwaves to proliferate at an unprecedented rate.

Climate change refers to significant, long-term shifts in weather patterns and temperatures.

These are not just isolated incidents. They are signs of a planet in distress, a planet experiencing the devastating effects of climate change, a phenomenon that is rapidly altering our environment and our lives.

The Science Behind the Crisis

Climate change refers to significant, long-term shifts in weather patterns and temperatures. These changes can manifest in a variety of ways: from prolonged droughts and unseasonal rains to extreme heatwaves and hurricanes. The root cause of today’s accelerated climate change is primarily human activity, particularly the burning of fossil fuels, deforestation, and industrial emissions, which release greenhouse gases like carbon dioxide into the atmosphere.

The Earth’s climate has always undergone natural variations—shifting from ice ages to warmer periods over millennia. However, what we are witnessing today is a much more rapid and intense change, driven by human actions. According to scientists, the Earth’s average temperature has risen by approximately 1.1°C since the late 19th century, with the past few decades seeing a rate of warming unprecedented in the geological record. The current trajectory suggests that global temperatures could rise by another 1-2°C by the end of the century, which would have catastrophic implications for both human and natural systems.

The impacts of this warming are already being felt globally. Melting ice caps and glaciers, rising sea levels, shifting weather patterns, and more frequent extreme weather events are some of the most visible signs. The Amazon rainforest, which once functioned as a massive carbon sink, is now a source of carbon emissions due to deforestation and wildfires. Meanwhile, heatwaves in parts of Europe and North America have reached previously unimaginable levels, set new temperature records and causing widespread harm.

A Global Phenomenon: From Kerala to Oregon

The devastating Kerala floods of 2018 were preceded by a series of warnings. The state’s weather patterns had been shifting, with increasingly unpredictable rainfall, leading to swollen rivers and the overflowing of dams. Once a relatively regular occurrence, floods in Kerala became more intense and frequent over time. Experts argue that climate change, through the intensification of the monsoon season and rising sea levels, has exacerbated the situation. But Kerala is not alone. Across the world, regions that were once resilient to extreme weather are now facing unprecedented levels of flooding, wildfires, and other disasters.

Image: Dominic Wunderlich from Pixabay

In 2020, when a record heatwave struck North America, temperatures in the Pacific Northwest soared to levels never seen before. Oregon, a state known for its temperate climate, reported its highest-ever temperatures. This heatwave triggered wildfires that devastated millions of acres of forest and caused significant loss of life. The fires were not simply a result of hot weather, but of the conditions created by climate change—dry forests, extreme heat, and shifting weather patterns all came together to fuel the fires.

Similarly, across the Atlantic, parts of Europe experienced an unusually harsh summer, with wildfires ravaging Spain, Portugal, and southern France. These fires were not natural events but were made more intense by the warming climate. Even in regions like Siberia, where wildfires were once rare, extreme temperatures and dry conditions have now turned vast areas into tinderboxes.

The Growing Threat: What the Future Holds

The world’s climate is now so volatile that extreme weather events are no longer an anomaly. They are becoming the new normal. Rising temperatures are leading to extreme heatwaves, higher sea levels are threatening coastal communities, and shifting weather patterns are disrupting ecosystems and agriculture. We are seeing longer droughts, more intense storms, and unpredictable rainfall, all of which are affecting millions of people across the globe.

In the coming decades, the situation is expected to worsen. According to scientists, we are on track to exceed a 1.5°C rise in global temperatures by 2050, with the potential for far-reaching consequences. Sea levels are projected to rise, displacing millions of people, while agriculture will suffer due to unpredictable rainfall and extreme temperatures. Already vulnerable regions, such as the Pacific Islands, will be the hardest hit, while major cities like New York, Mumbai, and Jakarta are all at risk of flooding.

Rising Temperatures and Their Far-reaching Effects

Even small changes in the Earth’s temperature can have profound impacts. A temperature-increase of just 1.5°C could lead to the irreversible melting of polar ice caps, resulting in a rise in sea levels that would submerge entire cities. Rising temperatures can also trigger the release of methane from thawing permafrost, a potent greenhouse gas that could accelerate global warming even further.

The stories from the Amazon, Kerala, Oregon, and beyond serve as stark reminders that the climate crisis is not a future problem—it is a present-day reality

One of the most troubling aspects of this warming is how it is changing the planet’s ecosystems. Species that once thrived in specific temperature ranges are now struggling to survive. Many are migrating to cooler areas, while others face extinction. As habitats shrink and weather patterns change, the very fabric of biodiversity is at risk.

Can We Change Course?

The question now is: Can we reverse or at least slow down these changes? While the situation is dire, scientists and environmentalists believe that immediate action can still mitigate the worst impacts of climate change. Transitioning to renewable energy sources, reducing deforestation, and investing in sustainable agricultural practices are essential steps. Governments, corporations, and individuals all have a role to play in ensuring that we shift towards a more sustainable and resilient future.

There is still time to act, but the window is closing fast. The more we delay, the more severe the impacts will be. The stories from the Amazon, Kerala, Oregon, and beyond serve as stark reminders that the climate crisis is not a future problem—it is a present-day reality that we can no longer afford to ignore.

A Global Call to Action

From the scorched rainforests of the Amazon to the flooded streets of Kerala and the heat-baked forests of Oregon, climate change is no longer a distant concept. It is here, now, and it affects all of us. But the power to change our future lies in our hands. By making sustainable choices, demanding policy changes, and holding accountable those who contribute to the climate crisis, we can begin to heal our planet before it’s too late.

The stories we tell today will define the world that future generations inherit. Will they look back and see a world that acted in time, or a world that failed to change until it was too late? The choice is ours.

Dipin is the Co-founder and Editor-in-Chief of EdPublica. A journalist and editor with over 15 years of experience leading and co-founding both print and digital media outlets, he has written extensively on education, politics, and culture. His work has appeared in global publications such as The Huffington Post, The Himalayan Times, DailyO, Education Insider, and others.

COP30

Over 832,000 Lives Lost, $4.5 Trillion in Damages, Extreme Weather The “New Normal”: Warns Climate Risk Index

A new report reveals the staggering toll of extreme weather — over 832,000 deaths and $4.5 trillion in losses between 1995 and 2024.

Dipin Damodharan

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Image credit:Philippe Forestier/Pexels

The numbers are stark, and the story they tell is even starker. More than 832,000 people have lost their lives and USD 4.5 trillion in direct economic losses have been recorded worldwide as a result of nearly 9,700 extreme weather events over the past three decades. That is the central finding of the Climate Risk Index (CRI) 2026, released by the environmental think tank Germanwatch at COP30 in Belém, Brazil.

The new report — the most comprehensive edition of the CRI to date — presents what its authors describe as a “mirror to global injustice”: a world where the poorest nations, least responsible for greenhouse gas emissions, continue to suffer the greatest losses.

Global South at the epicentre

According to the analysis, around 40% of the world’s population — more than three billion people — live in the eleven countries most affected by extreme weather events since 1995. These include India (ranked 9th), China (11th), Haiti (5th), and the Philippines (7th) — all nations of the Global South. None of these countries belong to the world’s richest economies, yet they bear the heaviest brunt of climate shocks.

“Heat waves and storms pose the greatest threat to human life when it comes to extreme weather events,” said Laura Schäfer, one of the index’s lead authors, in a statement. “Storms also caused by far the greatest monetary damage, while floods were responsible for the greatest number of people affected.”

In the 30-year period covered, storms alone caused over USD 2.64 trillion in damages, while floods accounted for nearly half of all people affected by disasters. Floods, storms, heat waves, and droughts together formed the deadly quartet responsible for most of the losses — both human and economic.

A decade of unrelenting disasters

From hurricanes that erased Caribbean islands to floods that swept away entire cities, the CRI 2026 paints a grim global mosaic.

At the top of the long-term index is Dominica, a tiny Caribbean island nation that has faced multiple catastrophic hurricanes. In 2017, Hurricane Maria alone caused losses amounting to three times the country’s GDP.

Myanmar ranks second, largely due to Cyclone Nargis (2008), which killed nearly 140,000 people and left deep scars still visible today. Honduras, Libya, Haiti, and Grenada follow, all of which endured either singularly devastating or repeated disasters.

The report notes that countries like Haiti, the Philippines, and India are trapped in cycles of destruction and recovery. “They are hit by floods, heat waves, or storms so regularly that entire regions can hardly recover from one disaster before the next strikes,” explained Vera Künzel, co-author of the index.

India among the top ten

India’s inclusion in the top ten highlights the scale and variety of climate hazards the country faces. Between 1995 and 2024, India endured over 430 major extreme weather events, resulting in more than 80,000 deaths, affecting 1.3 billion people, and inflicting USD 170 billion in damages (inflation-adjusted).

Recurring heat waves, increasingly intense monsoons, and devastating cyclones — from Odisha (1999) to Amphan (2020) — have made India one of the world’s most climate-vulnerable economies. Urban flooding in states like Maharashtra and Gujarat, and glacier-related floods in the Himalayas, have further underscored this fragility.

Even the rich are not spared

While the Global South remains most exposed, the new index shows that climate risks are no longer confined by wealth or borders. The United States (ranked 18th) and European nations such as France (12th) and Italy (16th) appear among the top 30 most affected countries — a reminder that the climate crisis has become universal.

“COP30 must find effective ways to close the global ambition gap”

The authors warn that no country is immune from the accelerating impacts of global warming. The year 2024 was the hottest on record, with global temperatures surpassing 1.5°C above pre-industrial levels for the first time. Scientists estimate that human-caused climate change added 41 extra days of dangerous heat for billions of people last year alone.

“The CRI 2026 results clearly demonstrate that COP30 must find effective ways to close the global ambition gap,” said David Eckstein, another co-author. “Global emissions have to be reduced immediately; otherwise, there is a risk of a rising number of deaths and economic disaster worldwide.”

A call for climate justice

The report urges the world’s wealthier nations to deliver on their long-standing promises of climate finance and loss-and-damage support for developing countries. Despite repeated commitments, funding for adaptation and disaster recovery remains far short of what vulnerable nations need.

Germanwatch estimates that developing countries may require up to USD 1.7 trillion annually by 2050 to address loss and damage caused by climate impacts. Without this support, the gap between rich and poor in climate resilience will only widen.

The CRI 2026 also points to positive developments — notably, a recent International Court of Justice advisory opinion affirming states’ legal duty to prevent and address climate harm, including through finance and reparations. The ruling, the authors note, adds legal and moral weight to the demands for urgent global action.

A warning — and a choice

Ultimately, the report is more than a statistical document; it is a warning. The patterns of destruction it reveals — from hurricanes in the Caribbean to heat waves in Asia — are not anomalies but signs of a “new normal.”

As COP30 negotiators gather in Belém, the message from the data is clear: unless emissions fall sharply and adaptation accelerates, the toll in both human lives and economic costs will keep rising.

“In a warmer world, tropical cyclones are becoming more intense and more destructive,” said Lina Adil, co-author of the index. “Without sustained global support, some nations will face challenges that are simply insurmountable.”

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COP30

Brazil Cuts Emissions by 17% in 2024—Biggest Drop in 16 Years, Yet Paris Target Out of Reach

Brazil’s 2024 emissions dropped 16.7% to 2.15 GtCO₂e, led by Amazon deforestation control—the biggest annual fall since 2009—but the country still risks missing its Paris climate goals.

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Brazil’s groEmissionsss greenhouse gas emissions fell from 2.576 billion tons of CO₂ equivalent in 2023 to 2.145 billion tons in 2024, the lowest drop since the country’s 17.2% decline in 2009. This turnaround was powered by enforcement against illegal deforestation, reversing a period of lax protections between 2019 and 2022. The net emissions figure—which deducts carbon absorbed by secondary forests and protected areas—dropped even further, down 22% year-on-year, landing at 1.489 billion tons in 2024.​

Sectoral Breakdown: Where Emissions Fell and Rose

The land-use sector, mostly deforestation, saw its gross emissions tumble from 1.341 to 0.906 billion tons (32.5% drop)—the largest reduction on record for any sector. This shifted the national emissions profile:

>> Land use change: 42% in 2024, compared to 52% in 2023

>> Agriculture: 29%, up from 24%

>> Energy: 20%, up from 16%

>> Waste: 5%

>> Industrial processes: 4% (both stable)

Emissions in agriculture and energy remained mostly flat, with only waste (up 3.6%) and industry (up 2.8%) recording notable increases.​

Deforestation Down, but Not the Whole Story

Enhanced government actions led to a 33% decline in Amazon deforestation emissions and a 41% drop in the Cerrado. Nevertheless, fires not associated with deforestation nearly doubled Brazil’s net deforestation emissions—an emerging risk as climate change fuels extreme drought and wildfires across formerly resilient biomes.​

Agriculture, Cattle, and Energy: Stubborn Sources

Brazil’s cattle sector remains the single largest emissions source, responsible for roughly 51% of national total. Efforts to control methane—including increased feedlot use and smaller herds—delivered a marginal 0.2% reduction in herd size and a slight drop in emissions. Nitrous oxide from fertilizers and lime also saw small declines, offsetting overall emission growth. Notably, emissions from energy rose nearly 1% due to record travel and electricity demand; only record ethanol and biodiesel consumption kept fossil CO₂ in check.​

Paris Pledge Still Out of Sight

Despite the historic emissions drop, Brazil is projected to end 2025 with net emissions of 1.44 billion tons—9% above its target under the Paris Agreement of 1.32 billion tons. While deforestation is falling, rising emissions from energy, agriculture, waste, and industry threaten to undermine overall climate progress. Experts emphasize that broader emission cuts, especially in fossil energy, are urgently needed for Brazil to have a chance at meeting its 2030 target (1.2 billion tons).​

Brazil’s 2024 emissions breakthrough underscores the pivotal impact of deforestation control on the country’s climate footprint. Yet, absent deeper reforms in agriculture, waste, and especially energy, Brazil’s Paris goals may remain out of reach—a clear signal for policymakers ahead of COP30.

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Earth

India and China to Peak Coal Emissions by 2030 — and India’s Data Proves It’s Economically Inevitable

New analysis finds China, India, and Indonesia—the world’s top coal users—can peak power-sector emissions by 2030, marking a global climate turning point.

Dipin Damodharan

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Image credit:Adil Ahnaf/Pexels

In what could mark a historic global energy shift, new analysis from the Centre for Research on Energy and Clean Air (CREA) reveals that the world’s three largest coal growth markets, China, India, and Indonesia, are on track to peak their power sector emissions by 2030. Together, these nations accounted for a staggering 73% of global coal consumption in 2024, making this potential turnaround a defining moment in the fight against climate change

China: Clean Energy Outpaces Demand

China has already reached a milestone that once seemed improbable: clean energy growth has outpaced the rise in electricity demand, leading to a fall in coal power emissions since early 2024

In 2024 alone, the country added 277 GW of solar capacity and 80 GW of wind, with an additional 212 GW of solar in just the first half of 2025. “Since I announced China’s goals for carbon peaking and carbon neutrality five years ago, China has built the world’s largest and fastest-growing renewable energy system,” President Xi Jinping declared earlier this year.

If current trends continue, China’s coal use may never return to previous highs. But sustaining this progress depends on meeting its 2035 clean energy targets and avoiding a slowdown in installations.

“China has already added enough new clean electricity generation to cover all new demand growth, and power sector coal use and emissions have been falling since 2024 as a result,” said Lauri Myllyvirta, CREA’s Lead Analyst, in the report.

India: Rapid Clean Energy Expansion Takes Off

India’s clean electricity boom, once stalled, has roared to life. In 2024, the country added a record 29 GW of non-fossil capacity, and by mid-2025, that pace had surged by 69% year-on-year.

With Prime Minister Narendra Modi’s 500 GW clean power target by 2030, India is already more than halfway there. The nation’s growing domestic solar manufacturing base—118 GW of module capacity and 27 GW of solar cells—is transforming it into a global solar hub.

“Meeting India’s 500 GW non-fossil power capacity target could peak coal power before 2030,” said Manoj Kumar, CREA Analyst. “Strengthening grid flexibility, storage, and transmission will be key to sustaining this momentum.”

India’s Coal Economics Have Flipped

A new report from Ember (October 2025) adds powerful economic validation to CREA’s projection.

Titled “Adding coal beyond the National Electricity Plan 2032 targets is uneconomical for India,” Ember’s findings confirm that building more coal plants is no longer cost-effective or necessary.

Ember’s least-cost operations model shows that if India meets its National Electricity Plan (NEP) 2032 targets for renewables and storage:

  • 10% of new coal units built after FY2024–25 will be completely unutilised by 2031–32
  • 25% of the coal fleet will be heavily underutilised
  • Coal-based electricity will become 25% more expensive by 2031–32 as utilisation drops

“Building coal beyond the current pipeline is neither necessary nor economical for the country,” said Neshwin Rodrigues, Senior Energy Analyst at Ember.

Ember’s study aligns with CREA’s broader conclusion — India’s clean energy growth is not only sufficient to meet new demand but also the cheapest and most reliable path forward.

Indonesia: Big Solar Vision vs. Fossil Reality

Indonesia’s new president Prabowo Subianto has laid out a bold plan for 100 GW of solar capacity and a 100% renewable power system by 2035. If fully realized, this initiative alone could cause coal power to peak by 2030.

However, Indonesia’s official power plan—the RUPTL 2025–34—still leans heavily on new coal and gas plants. CREA’s analysis warns that without strong oversight and power market reforms, Indonesia’s solar revolution could stall.

“The real opportunity lies in translating this vision into a concrete delivery roadmap that positions clean energy to dominate new capacity additions,” said Katherine Hasan, CREA Analyst.

The Economics of Change

Across all three nations, clean energy’s economic edge is becoming undeniable.

The cost of solar panels has dropped 60% since 2022, while battery storage prices fell 50% between 2022 and 2024. In China, clean energy industries now make up over 10% of GDP, fuelling jobs and innovation. India’s solar bids are now cheaper than coal tariffs, and Indonesia’s strong sunlight potential could soon make solar the most cost-effective option for households.

CREA’s report also highlights that these clean energy drives align with national priorities: energy independence, industrial growth, and improved air quality.

A Common Threat: Coal’s Last Stand

Despite rapid progress, the report warns of a looming obstacle—new coal projects. China currently has 230 GW of coal-fired power under construction, and India plans 100 GW more by 2035.  “Unchecked coal power expansion risks creating powerful vested interests that could delay the energy transition,” Myllyvirta cautioned. A rapid phase-down post-2030, he added, could cut emissions equivalent to India’s entire 2019 CO2 output.

A Turning Point for BRICS and the Planet

If successful, China, India, and Indonesia would join Brazil, South Africa, the UAE, and Ethiopia—other BRICS members that have already peaked their power emissions—transforming the bloc into an unexpected climate leader.

But the next few years are pivotal. Whether these nations sustain their clean energy momentum or fall back into fossil dependence could determine the world’s ability to meet the goals of the Paris Agreement.

As CREA concludes in the report, the road to peaking emissions is now open—what remains is the political will to walk it.

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