The devastating effects of climate change are becoming apparent — and the world has begun taking action. But the frequency of extreme weather events has shown we are starting to run out of time.
Image: picture alliance/AP Photo/N. Berger
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2017: Devastating effects of climate change
The world is increasingly taking action to stop climate change. But the frequency of devastating climate events in 2017 has shown that we are starting to run out of time. DW takes at look at some of the most dramatic.
Image: Reuters/E. De Castro
Sweltering heat
Unprecedented heat waves swept across the globe in 2017, leading to droughts, wildfires and even deaths. Australia started the year with temperatures near 50 degrees Celsius (122 Fahrenheit), the "Lucifer" heat wave brought the mercury above 40 degrees Celsius throughout Southern Europe in July and August and scorching heat hit India's most vulnerable people. Get ready for next summer...
Image: Imago/Agencia EFE
Disappearing wonder
Earlier this year, scientists realized that coral bleaching in Australia's Great Barrier Reef was worse than first thought. In some parts of the UNESCO World Heritage site, up to 70 percent of the coral has already been killed. By 2050, scientists have warned 90 percent of the reef could disappear. Rising sea temperatures and ocean acidification are the main culprits.
Image: picture-alliance/dpa
Deadly combination
Armed conflicts are pushing millions of people to leave their homes or live in terribly precarious situations — and climate change is making it worse. A lack of natural resources increases the risk of conflict and makes life even harder for refugees. South Sudanese families, for instance, are escaping to neighboring countries like Uganda and Kenya — countries already suffering from drought.
Image: Reuters/G.Tomasevic
World on fire
From New Zealand to Spain, from California to even Greenland: the world has seen a nonstop year of wildfires. Global warming has been blamed for the increased fire risk, and in some countries that risk has turned into reality. Wildfires engulfed large areas of Europe's Iberian Peninsula, causing death and destruction, while firefighters in California have had no rest for more than six months.
Image: Reuters/G. Blevins
Record-shattering storms
Hurricanes Maria and Irma, which hit the Caribbean region in August and September, were two of the year's most damaging weather events. The list of deadly storms also included Ophelia in Ireland, Harvey and Nate in Central America and the US, and Xavier and Sebastian in Germany. Warming of the ocean surface has led to more evaporation, and that water may help fuel thunderstorms and hurricanes.
Image: Getty Images/AFP/Str
Melting Antarctica
In July, one of the largest icebergs ever recorded separated from the Larsen C ice shelf — one of Antarctica's biggest — reducing its area by more than 12 percent. While calving icebergs in the Antarctic are part of a natural cycle, scientists have linked the retreat of several Antarctic ice shelves to global warming and are closely monitoring potential long-term effects.
Image: picture-alliance/dpa/NASA/J. Sonntag
Struggle to breathe
Deteriorating air quality causes thousands of deaths around the world every year. India's capital, New Delhi, is one of the world's most polluted cities. In November, large parts of northern India and Pakistan were engulfed by a blanket of thick smog carrying harmful particulate matter. Schools were forced to close, and hospitals were full of people with respiratory problems.
Image: Reuters/S. Khandelwal
Oceans at risk
The high levels of carbon dioxide in the atmosphere represent a major threat for our oceans, already in danger due to plastic pollution, overfishing and warming waters. Ocean acidification could make these waters — covering more than two-thirds of our planet's surface — a hostile environment for sea creatures. And without marine animals, entire ocean ecosystems are at risk.
Image: picture-alliance/Photoshot/B. Coleman
Fierce floods and mudslides
Superstorms often trigger flash floods and mudslides. In late December, more than 230 people were killed when a storm hit the Philippines' second-largest island of Mindanao, a tragedy exacerbated by years of deforestation. In 2017, severe floods also hit countries such as Vietnam, Peru and Sierra Leone. European countries, including Greece and Germany, also felt the damaging effects of heavy rain.
Image: Reuters/E. De Castro
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"Crazy" weather has been a hot topic for elevator conversations this year — and yes, extremes are starting to become the new normal.
No continent was spared in 2017 when it came to extreme weather. From droughts to hurricanes, from smog to forest fires, these events killed thousands of people — and have been directly linked to climate change.
Southern Europe, Canada and the United States were among the areas worst hit by devastating wildfires. Both in California and Portugal, 2017 has been the deadliest year on record for wildfires. Even icy Greenland wasn't spared. Climate change, along with the dangerous combination of a lack of sustainable forest management and careless — or malicious — human activity, has been to blame.
Major storms were also responsible for the year's most catastrophic events. Hurricane Harvey in the US, Irma and Maria in the Caribbean and Katia in the Gulf of Mexico left destruction in their wake. While hurricanes aren't unusual in tropical regions, the frequency and intensity of these most recent storms — fueled by warming oceans — were out of the ordinary. But they may be a sign of things to come, if the world doesn't take action to limit climate change.
At the same time, global sea levels reached a new high in 2017, with the polar ice caps melting at an accelerating pace. Warmer ocean temperatures contributed to the breakaway of a 1 trillion ton iceberg from the Larsen C ice shelf in Antarctica in July, at 5,800 square kilometers (2,200 square miles) one of the largest icebergs ever recorded.
Flooding caused the death of hundreds of people in the Philippines, Greece, Germany and Vietnam, to name just a few countries. Meanwhile, drought is increasing the pressure on regions of Africa and Asia, such as Somalia, South Sudan and Pakistan, where armed conflicts are already making daily life a struggle for survival.
Often forgotten, the struggles of the world's oceans also increased this year. Despite several initiatives protecting the Great Barrier Reef, coral bleaching has continued at an alarming rate. Ocean acidification, meanwhile, is on track to make the seas uninhabitable for many aquatic creatures, endangering entire ocean ecosystems.
Governments across the globe are taking action to address current and upcoming climate threats, and leaders like French President Emmanuel Macron, who took office in May and pledged to fund climate research, have been a source of hope for many.
But 2017 will also, unfortunately, be remembered for the US withdrawal from the 2015 Paris climate accord, along with President Donald Trump's other moves away from the fight against climate change.
As despairing as all of this may sound, it's actually another call to take action. Weather has always been out of our control — and will remain so. But we can still work to avoid making extremes the new normal.
