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Earth

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.

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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

Countries Lean on Unrealistic Land-Based Carbon Removal While Forest Protection Lags, Says Report

The Land Gap Report 2025 warns that countries’ COP30 climate pledges rely on unrealistic land-based carbon removal while neglecting forest protection, urging reforms in debt, tax, and trade systems to curb deforestation

Joe Jacob

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As world leaders gather at COP30, a new analysis warns that most national climate pledges rely heavily on unrealistic levels of land-based carbon removal rather than cutting emissions by protecting existing forests and phasing out fossil fuels.

The Land Gap Report 2025, released by a consortium of international researchers led by the University of Melbourne, finds that countries would need to dedicate over one billion hectares of land — an area larger than Australia — to meet their climate targets through large-scale tree planting, forest restoration, and bioenergy projects. The study calls this gap between ambition and feasibility a “land gap.”

“Why are so many countries ignoring forest protection as a key pillar of climate targets?” asked Kate Dooley, lead author of the report. “Because they live in a world where debt burdens and industry-friendly tax and trade policies force them to exploit forests to keep their economies from crashing.”

Debt, Trade, and Tax Policies Driving Forest Loss

The report argues that climate inaction on forests is rooted not just in a lack of financing but in structural economic pressures that compel developing nations to rely on deforestation and resource extraction for revenue.

It identifies a “forest gap” — the difference between global pledges to halt deforestation by 2030 and the actual trajectory of current plans — warning that 4 million hectares of forest are projected to be cleared annually by 2030, with another 16 million hectares degraded, leaving a 20-million-hectare shortfall in forest protection.

According to the authors, the biggest barrier is a global economic system “that pits economic development against ecosystem preservation.”

“The biggest threat to forests today — and the carbon they hold — is a global economic system shaped by debt and financial flows that lock countries into reliance on logging, mining, and industrial-scale agriculture,” said Dr. Rebecca Ray of Boston University’s Global Development Policy Center.

Reform Pathways: Debt Relief, Tax Justice, and Trade Shifts

The report urges COP30 negotiators to confront the “triple threat” of debt, tax, and trade policies that undermine forest protection:

Debt relief: Many biodiversity-rich nations face debt repayments that push them to expand plantations and mining. In countries such as Cameroon, IMF austerity measures have accelerated deforestation for timber, cotton, and cocoa exports.

Tax reform: The study highlights cross-border tax abuse and illicit financial flows that deprive nations of revenue needed for conservation. It cites Brazil’s proposal for a global wealth tax that could raise $200–500 billion annually for sustainable development.

Trade reform: Current trade rules favor large commodity traders and industrial agriculture — the single largest driver of deforestation. The authors call for trade regimes that prioritize sustainable food systems and smallholder farmers.

Financing Forests at Scale

While innovative mechanisms such as the Tropical Forest Forever Facility (TFFF) aim to generate up to $4 billion annually for forest protection, the report estimates that meeting 2030 forest goals would require $117–299 billion per year.

“Reform will be difficult, but there are already efforts underway to disrupt the status quo that could lead to healthier economies, forests, and communities,” said Kate Horner, co-lead author of the report. “The consequences of failure — the continued destruction of the world’s remaining forests — should be motivation enough to act.”

The Land Gap Report 2025 updates the 2022 analysis and evaluates national pledges submitted to the UN under the Paris Agreement. It examines nationally determined contributions (NDCs) and long-term climate strategies through October 2025. Less than 40% of parties have submitted updated NDCs since COP28.

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Earth

Data Becomes the New Oil: IEA Says AI Boom Driving Global Power Demand

Global energy systems enter a new phase as electricity demand surges from data centres and AI, prompting the IEA to warn of mounting risks across fuels, minerals, and grids in its World Energy Outlook 2025.

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The world is facing a more complex and fragile energy security landscape than ever before, according to the World Energy Outlook (WEO) 2025 released by the International Energy Agency (IEA) on Wednesday. The report calls for greater diversification of energy supplies and stronger international cooperation to navigate a period marked by overlapping risks across fuels, technologies, and supply chains.

The IEA notes that energy security tensions now span oil, gas, critical minerals, and electricity systems simultaneously — a situation without precedent in recent decades. “There is no other time when energy security tensions have applied to so many fuels and technologies at once,” said Fatih Birol, Executive Director of the IEA, in a statement. “Governments must show the same focus that they did after the 1973 oil shock.”

Emerging economies drive new demand

The WEO 2025 highlights a major shift in global energy demand patterns. India and Southeast Asia, along with countries in the Middle East, Africa, and Latin America, are emerging as the main drivers of future energy consumption. Collectively, these regions are expected to replace China — which accounted for 50% of oil and gas demand growth and 60% of electricity demand growth since 2010 — as the primary forces shaping global energy markets.

Data centres, AI surge push electricity demand

Electricity remains at the core of modern economies, with consumption projected to grow faster than total energy use across all scenarios. Investments in electricity generation have surged by nearly 70% since 2015, yet spending on power grids has increased at less than half that rate — creating potential bottlenecks.

The IEA notes that global electricity investment already equals half of total energy spending. Demand from data centres and artificial intelligence is now rising rapidly even in advanced economies. The report estimates that global data centre investment will reach USD 580 billion in 2025, surpassing the USD 540 billion being spent on oil supply — a striking indicator of how digitalisation is reshaping energy priorities.

Critical mineral dependency intensifies

The report warns of growing vulnerabilities in critical mineral supply chains, with one country dominating refining for 19 of 20 key strategic minerals, averaging a 70% global market share. These materials are crucial not only for clean energy technologies such as batteries and electric vehicles but also for defence, aerospace, and AI hardware.

Geographic concentration in refining has increased for nearly all major energy minerals since 2020, particularly for nickel and cobalt, making diversification a strategic priority for energy security.

Fossil fuel outlook and LNG expansion

The WEO 2025 finds ample global oil and gas supplies in the near term, with oil prices stabilising around USD 60–65 per barrel. A wave of liquefied natural gas (LNG) projects is also reshaping gas markets, with 300 billion cubic metres of new annual capacity expected by 2030 — a 50% increase over current levels. About half of this new capacity is being developed in the United States, and another 20% in Qatar.

Despite short-term supply stability, the IEA cautions that both oil and gas markets remain exposed to geopolitical shocks and volatile demand.

Climate goals off track

The report delivers a sobering message on global climate progress: no scenario keeps global warming below 1.5°C this century without drastic emissions cuts. While the pathway to net zero by 2050 could eventually bring temperatures back below that level, the world is already overshooting near-term targets.

About 730 million people still lack access to electricity, and two billion depend on unsafe cooking fuels. A new IEA scenario outlines universal electricity access by 2035 and clean cooking by 2040, driven largely by liquid petroleum gas (LPG) and renewable options.

A new era of electricity and resilience

The IEA describes the current moment as the “Age of Electricity,” where electric power underpins over 40% of global economic activity but still represents only 20% of final energy use. The report stresses that expanding grids, storage, and renewable capacity must accelerate to meet both climate and economic goals.

“Breakneck demand growth from data centres and AI is helping drive up electricity use in advanced economies,” said Dr Birol. “Those who say that ‘data is the new oil’ will note that investment in data infrastructure now exceeds spending on global oil supply — a striking example of the changing nature of modern economies.”

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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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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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