Sustainable coffee: What it really means

What does sustainably grown coffee mean?

In case you missed it: 4 big stories from our world

Human Nature shares four stories from the past week that you should know about.

Protecting the planet’s freshwater: 3 things you need to know 

Nature-based solutions were mainstream at last week’s Stockholm World Water Week.

For climate expert, California summit will be momentous homecoming

Conservation International’s Climate Change Lead Shyla Raghav discusses California’s climate goals and the Global Climate Action Summit.

2018 SkS Weekly Climate Change & Global Warming Digest #35

Calls to Action… Story of the Week… Editorial of the Week… El Niño/La Niña Update… Toon of the Week… Coming Soon on SkS… Climate Feedback Reviews… SkS Week in Review… Poster of the Week… Calls to Action*… Looking ahead… Sat Sep 8 is an extremely important day for climate activists because they will be gathering in cities throughout the world to Rise Up for Climate. If you re not already plugged into an event in your area, you can easily do so by going to the official Rise Up for Climate website. From the global campaign’s website: On September 8, we’re planning thousands of rallies in

2018 SkS Weekly Climate Change & Global Warming Digest #36

Story of the Week… Editorial of the Week… Toon of the Week… Quote of the Week… Coming Soon on SkS… John Cook Sighting… SkS Week in Review… Poster of the Week… Story of the Week… Rise for Climate: thousands march across US to protest environment crisis Protests spearheaded by march in San Francisco ahead of climate change summit in the city next week Several thousand people took part in a climate march in New York City on Thursday. Ten activists were arrested after blocking the street in front of Andrew Cuomo’s Manhattan office. Photograph: Michael Brochstein/SOPA Images/REX/Shutterstock Tens of thousands of people took part in marches and

California’s response to record wildfires: shift to 100% clean energy

In America today, it’s rare to see political leaders respond to a threat with an appropriate evidence-based policy solution. At the national level, more often we see actions that aggravate existing problems or create new ones. California – the country’s most populous and economically powerful state – has been a welcome exception. California has been battered by extreme weather intensified by climate change. From 2012 to 2016 the state was scorched by its worst drought in over a millennium. Weather whiplash struck in 2017, when much of the state broke precipitation records. This combination led to devastating

Rising CO2 levels could push ‘hundreds of millions’ into malnutrition by 2050

This is a re-post from Carbon Brief by Daisy Dunne An additional 290 million people could face malnutrition by 2050 if little is done to stop the rise of greenhouse gas emissions, a study finds. The increased presence of CO2 in the atmosphere could cause staple crops to produce smaller amounts of nutrients such as zinc, iron and protein, the researchers say. Using international datasets of food consumption, the study estimates that these changes could cause an additional 175 million people to be zinc deficient and an additional 122 million people to be protein deficient by

Does a slow AMOC increase the rate of global warming?

Established understanding of the AMOC (sometimes popularly called Gulf Stream System) says that a weaker AMOC leads to a slightly cooler global mean surface temperature due to changes in ocean heat storage. But now, a new paper in Nature claims the opposite and even predicts a phase of rapid global warming. What’s the story? By Stefan Rahmstorf and Michael Mann In 1751, the captain of an English slave-trading

Inside the global war on plastic pollution

How did we get here? Where is all this going?

A report from the European Meteorological Society’s annual meeting 2018

If you want to make a difference as a scientist, you need to make sure that people understand the importance of your work. Conferences give you one opportunity to explain what you’ve found out. I sometimes wonder if the value of attending conferences is sufficiently appreciated. You can save time getting an overview over your field of research and catch up on the latest developments, which would take many weeks just from

BASF drives change in the palm-oil supply chain

Sponsored: Corporate accountability is key to fostering a sustainable and equitable palm-oil industry.

Why 2020 is such an urgent milestone for the planet

There’s a direct connection between healthy forests and grasslands, and climate change.

An affogato theory of transportation

Coffee and ice cream and jam (or traffic jams).

Climate mitigation takes root

Mangroves could well be our last line of defense against climate change. But they’re under threat.

SunPower Pivots to ‘Solar Energy Services’ Upon Exiting Utility-Scale Development

SunPower’s solar development team is officially all-in on distributed generation. The company’s utility-scale self-development team is now down to around 10 employees, as SunPower executes on its strategy to focus on residential and commercial and industrial projects, said CEO Tom Werner, in a recent interview. Most employees in that group have taken other jobs at SunPower or have moved on to other companies, with very

Pxise Lands Investment From Mitsui to Expand Real-Time Grid Balancing Software

Pxise Energy Solutions, the Sempra Energy spinout with software that can tap lots of wind and solar inverters, batteries, and other distributed energy resources to help balance the grid, has landed an undisclosed equity investment from Japanese trading house Mitsui. It’s the first outside investment for the company, which plans to use the money to expand its software in commercial applications ranging from large-scale wind and solar farms to small-scale microgrids — and, potentially, distributed energy resource (DER) management for applications like distribution grids that lie between those two extremes. Patrick Lee, president of Pxise (pronounced like “spice” without the “s”), declined to say how

Climate change science comeback strategies

This is a re-post from Yale Climate Connections by Karin Kirk Credit: Image by Karin Kirk. Staircase wit. L’esprit de l’escalier. It’s the way the perfect response in an uncomfortable conversation comes cruelly late, occurring only after the crux moment has long since passed, and you’re descending the stairs on your way home. Why didn’t I think of that? you ask, kicking yourself for temporarily forgetting how carbon isotopes show that fossil fuels are indeed the source of the CO2 buildup in the atmosphere. As the American culture

Welcome to the Pliocene

The whole story in a table…. The graphic below (click on it for a large version) is adapted from a table in the supporting information from a newly published paper in Proceedings of the National Academy of Sciences (PNAS). Trajectories of the Earth System in the Anthropocene, as the paper is entitled, looks at several climate states – the present day, the mid-Holocene, the

Musing about Losing Earth

The NY Times Magazine has a special issue this weekend on climate change. The main article is “Losing the Earth” by Nathaniel Rich, is premised on the idea that in the period 1979 to 1989 when we basically knew everything we needed to know that climate change was a risk, and the politics had not yet been polarized, we missed our opportunity to act. Stated this way, it would probably

Are the heatwaves caused by climate change? 

I get a lot of questions about the connection between heatwaves and climate change these days. Particularly about the heatwave that has affected northern Europe this summer. If you live in Japan, South Korea, California, Spain, or Canada, you may have asked the same question. The raindrop analogy However, the question is inaccurate and I will try to explain this through an analogy. Let’s say I go for a walk with a friend and my friend feels a few drops of water that fall on her. She asks me if it’s raining. But as long as there was only few drops of water, it could also be something else. I tell her that we can get

Global solar capacity set to pass one terawatt mark by 2023

A new report indicates changes in the international renewables market due to policy changes in China.

10 objectives for assessing Mobility as a Service

MaaS has the potential to transform cities, but first, we need a new paradigm for how we are using it.