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Warming waters, local differences in oceanography affect Gulf of Maine lobster population

Science Daily: Climate News - Fri, 10/25/2019 - 14:59
Two new studies point to the role of a warming ocean and local differences in oceanography in the rise and fall of lobster populations southern New England to Atlantic Canada.

Not all plants are good for you

Science Daily: Climate News - Fri, 10/25/2019 - 14:59
A new scientific review highlights a significant global health issue related to plants that sicken or kill undernourished people around the world, including those who depend upon these plants for sustenance. Some of these plants become even more toxic due to climate change.

What's driving tropical deforestation? Scientists map 45 years of satellite images

Science Daily: Climate News - Fri, 10/25/2019 - 14:58
Tropical forests are under increasing pressure from human activity such as agriculture. However, in order to put effective conservation measures in place, local decision-makers must be able to precisely identify which areas of forest are most vulnerable. A new analysis method could hold the key.

Daylight not rain most important for Africa 'green-up' phenomenon

Science Daily: Climate News - Fri, 10/25/2019 - 14:58
Contrary to popular belief, seasonal rains are not the most important factor for starting the growth cycle of plants across Africa. New research shows that the amount of daylight plants receive is the biggest contributing factor to starting the iconic 'green-up' phenomenon in Africa - where the continent's plants and trees grow their leaves.

Mountain streams emit a surprising amount of carbon dioxide

Science Daily: Climate News - Fri, 10/25/2019 - 14:54
For the first time, scientists have measured the total amount of CO2 emissions from mountain streams worldwide. This research builds on recent findings and shows how important it is to include mountain streams in assessments of the global carbon cycle.

US corn yields get boost from a global warming 'hole'

Science Daily: Climate News - Thu, 10/24/2019 - 22:41
The global average temperature has increased 1.4 degrees Fahrenheit over the last 100 years. In contrast, the Corn Belt of the U.S., one of the most agriculturally productive regions of the world, has experienced a decrease in temperatures in the summer during the growing season. Known as the 'US warming hole,' this anomalous cooling phenomenon, which occurred in tandem with increasing rainfall, was responsible for boosting corn yields by 5 to 10 percent per year, according to a new study.

Higher local earthworm diversity in temperate regions than in the tropics

Science Daily: Climate News - Thu, 10/24/2019 - 21:12
In any single location, there are typically more earthworms and more earthworm species found in temperate regions than in the tropics. Global climate change could lead to significant shifts in earthworm communities worldwide, threatening the many functions they provide.

The shelf life of pyrite

Science Daily: Climate News - Thu, 10/24/2019 - 19:26
What exactly triggers the increase in carbon dioxide concentrations that causes the transition from a glacial stage to a warm stage is not fully understood. Scientists have developed a new model in which the weathering of pyrite, a common mineral containing sulfur, plays a key role.

Imperfect diamonds paved road to historic Deep Earth discoveries

Science Daily: Climate News - Thu, 10/24/2019 - 17:58
Researchers have explored how carbon moves between Earth's interior, surface and atmosphere; how much deep carbon exists, in what forms (including vast microbial life); where carbon came from; and how life began.

Strong winter dust storms may have caused the collapse of the Akkadian Empire

Science Daily: Climate News - Thu, 10/24/2019 - 16:36
Fossil coral records provide new evidence that frequent winter shamals, or dust storms, and a prolonged cold winter season contributed to the collapse of the ancient Akkadian Empire in Mesopotamia.

Fungi could reduce reliance on fertilizers

Science Daily: Climate News - Thu, 10/24/2019 - 14:50
Introducing fungi to wheat boosted their uptake of key nutrients and could lead to new, 'climate smart' varieties of crops, according to a new study.

Climate change could hasten deterioration of US bridge infrastructure

Science Daily: Climate News - Wed, 10/23/2019 - 22:03
Scientists are studying the toll climate change may take on aging US infrastructure, which includes over 600,000 bridges. A new study links the potential impacts of climate change with the structural integrity of thousands of bridges transecting America's highways and towns. The analysis demonstrates a need to rethink the nation's priority order of bridge repair, as climate change looms and infrastructure funding remains limited.

A roadmap to make the land sector carbon neutral by 2040

Science Daily: Climate News - Wed, 10/23/2019 - 17:46
Land is critical to human livelihoods and wellbeing, while actions related to land use also play an important role in the climate system. Researchers have developed a new roadmap outlining actions on deforestation, restoration, and carbon cuts that could lead to the land sector becoming carbon neutral by 2040 and a net carbon sink by 2050.

Scientists tout ocean protection progress, give road map for more

Science Daily: Climate News - Wed, 10/23/2019 - 16:34
World governments and other leadership bodies are taking vital steps to protect the ocean but more progress is urgently needed, scientists reported today at the Our Ocean Conference.

Mapping international drug use through the world's largest wastewater study

Science Daily: Climate News - Wed, 10/23/2019 - 16:34
A seven-year project monitoring illicit drug use in 37 countries via wastewater samples shows that cocaine use was skyrocketing in Europe in 2017 and Australia had a serious problem with methamphetamine.

Satellite data used to calculate snow depth in mountain ranges

Science Daily: Climate News - Tue, 10/22/2019 - 19:11
Bioscience engineers have developed a method to measure the snow depth in all mountain ranges in the Northern Hemisphere using satellites. This technique makes it possible to study areas that cannot be accessed for local measurements, such as the Himalayas.

Are humans changing animal genetic diversity worldwide?

Science Daily: Climate News - Tue, 10/22/2019 - 18:21
Human population density and land use is causing changes in animal genetic diversity, according to new research. The research show that environmental changes caused by humans are leading to changes in genetic variation in thousands of species of birds, fish, insects, and mammals. The evidence for human impacts was most clear for insects and fish species.

Dry season increase in photosynthesis in Amazon rain forest

Science Daily: Climate News - Tue, 10/22/2019 - 16:28
A new study demonstrated the potential of the TROPOspheric Monitoring Instrument on board the Copernicus Sentinel-5 Precursor satellite to measure and track chlorophyll fluorescence and photosynthesis of tropical forests in the Amazon.

Fish more tolerant than expected to low oxygen events

Science Daily: Climate News - Tue, 10/22/2019 - 15:07
Fish may be more tolerant than previously thought to periods of low oxygen in the oceans, new research shows.

Catastrophic events carry forests of trees thousands of miles to a burial at sea

Science Daily: Climate News - Tue, 10/22/2019 - 01:33
While studying sediments in the Bay of Bengal, an international team finds evidence dating back millions of years that catastrophic events likely toppled fresh trees from their mountain homes on a long journey to the deep sea. The discovery may add to models of the Earth's carbon cycle.

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