Fish are expected to shrink in size by 20 to 30 per cent if ocean temperatures continue to climb due to climate change.

A new study by researchers at the University of British Columbia provides a deeper explanation of why fish are expected to decline in size.

Scientists concerned that global warming may release huge stores of methane from reservoirs beneath Arctic tundra and deposits of marine hydrates – a theory known as the “clathrate gun” hypothesis – have turned to geologic history to search for evidence of significant methane release during past warming events.

A new study published this week in the journal Nature suggests, however, that the last ice age transition to a warmer climate some 11,500 years ago did not include massive methane flux from marine sediments or the tundra. Instead, the likely source of rising levels of atmospheric methane was from tropical wetlands, authors of the new study say.

Ice has always been fascinating to Alison Criscitiello.

“I had a science teacher who did a short unit on glaciers … I couldn’t believe they were real,” she says. That classroom encounter when she was in eight grade in Winchester, Massachusetts, had a lasting impact.

In recent decades, change has defined our environment in the United States. Agriculture intensified. Urban areas sprawled. The climate warmed. Intense rainstorms became more common. But, says a new University of Wisconsin–Madison study, while those kinds of changes usually result in poor water quality, lakes have surprisingly stayed the same.

Farmers across the world produce between 10 and 13 million tons of field pea every year. That makes it a top legume crop, just behind dry beans and chickpeas.

NASA’s Aqua satellite passed over Typhoon Hato just hours after it made landfall in southeastern China. 

The vulnerability and conservation value of sub-tropical reefs south of the Great Barrier Reef - regarded as climate change refuges – has been highlighted in a new study.

Kodiak brown bears are abandoning salmon–their iconic prey–due to climate change, according to a new study.  

In new results reported in The Plant Cell, molecular biologist Elizabeth Vierling at the University of Massachusetts Amherst and colleagues in India and China report finding a crucial mechanism that plants need to recover from heat stress.

Clathrate (hydrate) gun hypothesis stirred quite the controversy when it was posed in 2003. It stated that methane hydrates – frozen water cages containing methane gas found below the ocean floor – can melt due to increasing ocean temperatures.