Medications

Clove oil: Ideal weapon against mosquitoes

The effectiveness of eugenol—an eco-friendly, plant-based insecticide that is mainly extracted from cloves—in killing the larvae of mosquitoes can be greatly enhanced by the addition of chemicals called synergists, says ...

Oncology & Cancer

Scientists discover how air pollution triggers lung cancer

Scientists said Saturday they had identified the mechanism through which air pollution triggers lung cancer in non-smokers, a discovery one expert hailed as "an important step for science—and for society".

Diseases, Conditions, Syndromes

Lessons from the 1918 flu pandemic, 100 years on

This year marks the centenary of the 1918 influenza pandemic, the worst flu outbreak in recorded history. A new study into the human, viral and societal factors behind its severity provides valuable lessons that could save ...

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Climate change

Climate change is any long-term change in the statistics of weather over periods of time that range from decades to millions of years. It can express itself as a change in the mean weather conditions, the probability of extreme conditions, or in any other part of the statistical distribution of weather. Climate change may occur in a specific region, or across the whole Earth.

In recent usage, especially in the context of environmental policy, climate change usually refers to changes in modern climate (see global warming). For information on temperature measurements over various periods, and the data sources available, see temperature record. For attribution of climate change over the past century, see attribution of recent climate change.

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