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The ocean absorbs about 90 percent of the excess heat produced as climate change warms the earth. Image Catalog

New findings on ocean warming: 5 questions answered

According to a new study, the oceans have absorbed more heat from climate change than previously thought. This could mean the Earth will warm even faster in the future than scientists have predicted.
A man walks through a greenhouse in northeastern Uganda where sustainable agriculture techniques such as drought-resistant crops and tree planting are taught, Oct. 19, 2017. AP Photo/Adelle Kalakouti

World hunger has risen for three straight years, and climate change is a cause

After declining for nearly a decade, the number of hungry people in the world is growing again. Climate change, which is disrupting weather patterns that farmers rely on, is a major cause.
Miami is investing hundreds of millions of dollars to raise roads in response to rising sea levels. AP Photo/Wilfredo Lee

What is climate-ready infrastructure? Some cities are starting to adapt

Infrastructure systems – roads, water treatment systems, power grid – can't be built the same ways as in the past. What's a better roadmap for the future?
High school students at the University of Maine Farmington’s Upward Bound program playing the World Climate simulation. Mary Sinclair

How a game can move people from climate apathy to action

In the 'World Climate' simulation, people play delegates to UN climate negotiations and work to strike an agreement that meets global climate goals. Playing it has made thousands want to take action.
Without rapid and dramatic changes, the world will face a higher risk of extreme weather and other effects of climate change. AP Photo/Mike Groll

Why we can’t reverse climate change with ‘negative emissions’ technologies

The UN's panel on climate change said that technologies to remove CO2 will be necessary to limit global temperature rise to only 1.5 degrees Celsius. But these techniques are largely unproven.
The IPCC’s first cities conference revealed the challenges in bridging the gaps between scientific knowledge and policy practice, and between cities in developed and developing nations. Cities IPCC/Twitter

IPCC cities conference tackles gaps between science and climate action on the ground

The first IPCC conference on cities has highlighted the challenges of reconciling science, urban practices and politics. But it was an important recognition of cities' leading role in climate action.
South African women trying to soak up stagnant water during the drought in January 2016. Denis Farrell/AP

How bucking climate change accord would hinder fight against HIV/AIDS

Climate change imperils food supply in many parts of the world, including South Africa, which has shown major gains in treating HIV/AIDS. Climate change could mean even less food -- and more disease.
Martial Trezzeni/EPA

IPCC chair Hoesung Lee: we can meet 2°C global warming target if we act fast

Lee: 'Business will be far from usual in a world of four, five or six degrees of warming.'

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