Like giant bones planted in the earth, clusters of tree trunks, stripped clean of bark, are appearing along the Chesapeake Bay on the United States’ mid-Atlantic coast. They are ghost forests: the haunting remains of what were once stands of cedar and pine. Since the late 19th century, an ever-widening swath of these trees have died along the shore. And they won’t be growing back.

These arboreal graveyards are showing up in places where the land slopes gently into the ocean and where salty water increasingly encroaches. Along the United States’ East Coast, in pockets of the West Coast, and elsewhere, saltier soils have killed hundreds of thousands of acres of trees, leaving behind woody skeletons typically surrounded by marsh.

What happens next? That depends. As these dead forests transition, some will become marshes that maintain vital ecosystem services, such as buffering against storms and storing carbon. Others may become home to invasive plants or support no plant life at all—and the ecosystem services will be lost. Researchers are working to understand how this growing shift toward marshes and ghost forests will, on balance, affect coastal ecosystems.

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Like giant bones planted in the earth, clusters of tree trunks, stripped clean of bark, are appearing along the Chesapeake Bay on the United States’ mid-Atlantic coast. They are ghost forests: the haunting remains of what were once stands of cedar and pine. Since the late 19th century, an ever-widening swath of these trees have died along the shore. And they won’t be growing back.

These arboreal graveyards are showing up in places where the land slopes gently into the ocean and where salty water increasingly encroaches. Along the United States’ East Coast, in pockets of the West Coast, and elsewhere, saltier soils have killed hundreds of thousands of acres of trees, leaving behind woody skeletons typically surrounded by marsh.

What happens next? That depends. As these dead forests transition, some will become marshes that maintain vital ecosystem services, such as buffering against storms and storing carbon. Others may become home to invasive plants or support no plant life at all—and the ecosystem services will be lost. Researchers are working to understand how this growing shift toward marshes and ghost forests will, on balance, affect coastal ecosystems.

Read full article

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Like giant bones planted in the earth, clusters of tree trunks, stripped clean of bark, are appearing along the Chesapeake Bay on the United States’ mid-Atlantic coast. They are ghost forests: the haunting remains of what were once stands of cedar and pine. Since the late 19th century, an ever-widening swath of these trees have died along the shore. And they won’t be growing back.

These arboreal graveyards are showing up in places where the land slopes gently into the ocean and where salty water increasingly encroaches. Along the United States’ East Coast, in pockets of the West Coast, and elsewhere, saltier soils have killed hundreds of thousands of acres of trees, leaving behind woody skeletons typically surrounded by marsh.

What happens next? That depends. As these dead forests transition, some will become marshes that maintain vital ecosystem services, such as buffering against storms and storing carbon. Others may become home to invasive plants or support no plant life at all—and the ecosystem services will be lost. Researchers are working to understand how this growing shift toward marshes and ghost forests will, on balance, affect coastal ecosystems.

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Whether anything ever lived on Mars is unknown. And the present environment, with harsh temperatures, intense radiation, and a sparse atmosphere, isn’t exactly propitious for life. Despite the red planet’s brutality, lichens that inhabit some of the harshest environments on Earth could possibly survive there.

Lichens are symbionts, or two organisms that are in a cooperative relationship. There is a fungal component (most are about 90 percent fungus) and a photosynthetic component (algae or cyanobacteria). To see if some species of lichen had what it takes to survive on Mars, a team of researchers led by botanist Kaja Skubała used the Space Research Center of the Polish Academy of Sciences to expose the lichen species Diploschistes muscorum and Cetrarea aculeata to simulate Mars conditions.

“Our study is the first to demonstrate that the metabolism of the fungal partner in lichen symbiosis was active while being in a Mars-like environment,” the researchers said in a study recently published in IMA Fungus. “X-rays associated with solar flares and SEPs reaching Mars should not affect the potential habitability of lichens on this planet.”

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Whether anything ever lived on Mars is unknown. And the present environment, with harsh temperatures, intense radiation, and a sparse atmosphere, isn’t exactly propitious for life. Despite the red planet’s brutality, lichens that inhabit some of the harshest environments on Earth could possibly survive there.

Lichens are symbionts, or two organisms that are in a cooperative relationship. There is a fungal component (most are about 90 percent fungus) and a photosynthetic component (algae or cyanobacteria). To see if some species of lichen had what it takes to survive on Mars, a team of researchers led by botanist Kaja Skubała used the Space Research Center of the Polish Academy of Sciences to expose the lichen species Diploschistes muscorum and Cetrarea aculeata to simulate Mars conditions.

“Our study is the first to demonstrate that the metabolism of the fungal partner in lichen symbiosis was active while being in a Mars-like environment,” the researchers said in a study recently published in IMA Fungus. “X-rays associated with solar flares and SEPs reaching Mars should not affect the potential habitability of lichens on this planet.”

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Whether anything ever lived on Mars is unknown. And the present environment, with harsh temperatures, intense radiation, and a sparse atmosphere, isn’t exactly propitious for life. Despite the red planet’s brutality, lichens that inhabit some of the harshest environments on Earth could possibly survive there.

Lichens are symbionts, or two organisms that are in a cooperative relationship. There is a fungal component (most are about 90 percent fungus) and a photosynthetic component (algae or cyanobacteria). To see if some species of lichen had what it takes to survive on Mars, a team of researchers led by botanist Kaja Skubała used the Space Research Center of the Polish Academy of Sciences to expose the lichen species Diploschistes muscorum and Cetrarea aculeata to simulate Mars conditions.

“Our study is the first to demonstrate that the metabolism of the fungal partner in lichen symbiosis was active while being in a Mars-like environment,” the researchers said in a study recently published in IMA Fungus. “X-rays associated with solar flares and SEPs reaching Mars should not affect the potential habitability of lichens on this planet.”

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Google's history with music services is almost as convoluted and frustrating as its history with messaging. However, things have gotten calmer ( and slower ) ever since Google ceded music to the YouTube division . The YouTube Music app has its share of annoyances, to be sure, but it's getting a long-overdue feature that users have been requesting for ages: consistent volume.

Listening to a single album from beginning to end is increasingly unusual in this age of unlimited access to music. As your playlist wheels from one genre or era to the next, the inevitable vibe shifts can be grating. Different tracks can have wildly different volumes, which can be shocking and potentially damaging to your ears if you've got your volume up for a ballad only to be hit with a heavy guitar riff after the break.

The gist of consistent volume simple—it normalizes volume across tracks, making the volume roughly the same. Consistent volume builds on a feature from the YouTube app called "stable volume." When Google released stable volume for YouTube, it noted that the feature would continuously adjust volume throughout the video. Because of that, it was disabled for music content on the platform.

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Google's history with music services is almost as convoluted and frustrating as its history with messaging. However, things have gotten calmer ( and slower ) ever since Google ceded music to the YouTube division . The YouTube Music app has its share of annoyances, to be sure, but it's getting a long-overdue feature that users have been requesting for ages: consistent volume.

Listening to a single album from beginning to end is increasingly unusual in this age of unlimited access to music. As your playlist wheels from one genre or era to the next, the inevitable vibe shifts can be grating. Different tracks can have wildly different volumes, which can be shocking and potentially damaging to your ears if you've got your volume up for a ballad only to be hit with a heavy guitar riff after the break.

The gist of consistent volume simple—it normalizes volume across tracks, making the volume roughly the same. Consistent volume builds on a feature from the YouTube app called "stable volume." When Google released stable volume for YouTube, it noted that the feature would continuously adjust volume throughout the video. Because of that, it was disabled for music content on the platform.

Read full article

Comments

Google's history with music services is almost as convoluted and frustrating as its history with messaging. However, things have gotten calmer ( and slower ) ever since Google ceded music to the YouTube division . The YouTube Music app has its share of annoyances, to be sure, but it's getting a long-overdue feature that users have been requesting for ages: consistent volume.

Listening to a single album from beginning to end is increasingly unusual in this age of unlimited access to music. As your playlist wheels from one genre or era to the next, the inevitable vibe shifts can be grating. Different tracks can have wildly different volumes, which can be shocking and potentially damaging to your ears if you've got your volume up for a ballad only to be hit with a heavy guitar riff after the break.

The gist of consistent volume simple—it normalizes volume across tracks, making the volume roughly the same. Consistent volume builds on a feature from the YouTube app called "stable volume." When Google released stable volume for YouTube, it noted that the feature would continuously adjust volume throughout the video. Because of that, it was disabled for music content on the platform.

Read full article

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