Varun Srinivasan

23 Flips | 2 Magazines | 383 Likes | 4 Following | 7 Followers | @varunsn | An environmentalist who loves to travel and be inspired by the beauty to do more to help protect it

Promising new material has the right properties to capture solar energy, split water into hydrogen and oxygen

Solar energy is clean and abundant. But when the sun isn't shining, you must store the energy in batteries or through a process called …

Clean Energy

Was There a Civilization On Earth Before Humans?

A look at the available evidence<p>It only took five minutes for Gavin Schmidt to out-speculate me.<p>Schmidt is the director of NASA’s Goddard Institute for Space Studies (a.k.a. GISS) a world-class climate-science facility. One day last year, I came to GISS with a far-out proposal. In my work as an …

The terrifying phenomenon that is pushing species towards extinction

Scientists are alarmed by a rise in mass mortality events – when species die in their thousands. Is it all down to climate change?<p>There was almost something biblical about the scene of devastation that lay before Richard Kock as he stood in the wilderness of the Kazakhstan steppe. Dotted across the …

Climate Change

New NASA Study Solves Climate Mystery, Confirms Methane Spike Tied to Oil and Gas

By Sharon Kelly<p>Over the past few years, natural gas has become the primary fuel that America uses to generate electricity, displacing the long-time …

Road salt is actually pretty terrible for the planet

Could beets be the solution?<p>Marshes, streams and lakes lie alongside many of the roads and highways that zigzag across North America. Plants and animals inhabit these water bodies and can be exposed to many of the substances we put on those roads, including road salt.<p>Rock salt helps keep roads safe …

Turning Point: Global Supply Chains And Carbon

Twenty-five years ago this month the Union of Concerned Scientists published what they hoped would be a game-changing wake-up call to the world. In it, 1,700 esteemed scientists called out what they saw as a broad pattern of rising environmental damage that would, if unchecked, lead to “vast human …

Where did those electrons go? Decades-old mystery solved

The concept of "valence" - the ability of a particular atom to combine with other atoms by exchanging electrons - is one of the cornerstones of …

A new kind of quantum computer

Quantum mechanics incorporates some very non-intuitive properties of matter. Quantum superposition, for example, allows an atom to be simultaneously …

Millions of years ago, hollow trees literally tore themselves apart to grow

Sometimes, early life was profoundly weird.<p>374 million years ago, fish and trilobites dominated the seas, swimming past coral reefs and ammonites. Things were <i>happening</i> underwater, while on land everything stayed pretty dry and boring.<p>A few arthropods started to step out on solid ground, but for the …

Winning Swiss solar powered ‘Solar Decathlon’ home wants to feed, clean and protect you

Four Swiss universities came together to build the US Department of Energy’s 2017 Solar Decathlon overall winner. Eleven teams competed over the course of two years to build a home taking into account modern global demands of “reliability, resilience, and security.”<p>The Swiss schools – École …

Sustainable irrigation may harm other development goals, study shows

Pursuing sustainable irrigation without significant irrigation efficiency gains could negatively impact environmental and development goals in many …

Fracking Has Cut More CO2 Emissions Than All Renewable Energy Combined

2:49 PM 10/06/2017<p>Hydraulic fracturing has done more to cut U.S. carbon dioxide emissions in the last decade than all renewable energy sources and …

Fossil Fuels

A Material That Throws Heat into Space Could Soon Reinvent Air-Conditioning - MIT Technology Review

Eli Goldstein, a fresh-faced cofounder of SkyCool Systems, pulled open the garage door on the side of the Stanford spinout's cramped workspace in …

Clean Energy

Earth Is Running Out of Sand, Apparently

Summer is coming to an end, and you may be thinking fondly back to times spent lounging on a beach, soft white sand flowing between your fingers and …

Water

Nonfiction Book Review: Extreme Cities: The Perils and Promise of Urban Life in the Age of Climate Change by Ashley Dawson. Verso, $29.95 (384p) ISBN 978-1-78478-036-4

Extreme Cities: The Perils and Promise of Urban Life in the Age of Climate Change<p>Ashley Dawson. Verso, $29.95 (384p) ISBN 978-1-78478-036-4<p>Dawson</i> …

Book Reviews

What You Can Actually Do to Fight Climate Change, According to Science

There’s no doubt that if we’re going to stop or even slow down climate change, we have to get our collective shit together. But collective action …

This New Interactive Documentary on Viruses Is Spellbinding

Golf balls, some buildings, and even a few works of religious art imitate viruses. Not in a bad way, but in their beauty.<p>If you don’t believe me, …

Documentaries

India needs alternative growth model to avoid resources running dry, says European Commission

<b>New Delhi:</b> India needs to develop an alternative, sustainable growth model to avoid depleting its resources at the current pace and make the same …

Listen to these podcasts if you want to keep up the fight against climate change.

American history is built on two things: fighting for what’s important, and lying around consuming various forms of entertainment. We were inspired …

Cartoonist draws attention to climate change with humor

<b>Alex Hallatt's 'Arctic Circle' comic, with its fun yet scientific approach, has been going strong for 10 years.</b><p>When Alex Hallatt started drawing her …

New water filtration process uses 1,000 times less energy

A new process for water filtration using carbon dioxide consumes one thousand times less energy than conventional methods, scientific research …