Grey, blue, green – why are there so many colours of hydrogen?
Jul 27, 2021 · Black, brown and grey hydrogen. Grey hydrogen is the most common form and is generated from natural gas, or methane, through a process called “steam reforming”. This process generates just a smaller amount of emissions than black or brown hydrogen, which uses black (bituminous) or brown (lignite) coal in the hydrogen-making process.
China has a water crisis - how can it be solved?
Apr 29, 2016 · By protecting forests and improving agricultural practices in targeted areas in China, the country can improve water quality. In fact, by targeting conservation strategies to roughly 1.4 million hectares, sediment and nutrient pollution could be measurably reduced – by at least 10% – in these small to medium sized water catchments.
Plastic pollution: which two oceans contain the most?
Aug 22, 2016 · The ocean with the largest amount of plastic is the North Pacific, followed by the Indian Ocean, the North Atlantic, the South Pacific, the South Atlantic and the Mediterranean Sea. While you might imagine a scene the equivalent of a floating landfill, actually much of the plastic is barely visible. Among the most common items are the tiny ...
What is globalization anyway? | World Economic Forum
Jan 10, 2017 · How globalization works. In simple terms, globalization is the process by which people and goods move easily across borders. Principally, it's an economic concept – the integration of markets, trade and investments with few barriers to slow the flow of products and services between nations. There is also a cultural element, as ideas and ...
Hydrogen is a key fuel for our sustainable future
Dec 7, 2023 · Hydrogen, the simplest and most abundant element in the universe, has the potential to be the fuel of the future. It's an energy carrier that can store and deliver energy in a usable form. In its pure form, hydrogen is a colourless, odourless and non-toxic gas. It's high in energy, yet an engine that burns pure hydrogen produces almost no ...
These are the cities with the worst noise pollution
Mar 27, 2017 · Delhi was the second worst city for noise pollution, followed by Cairo, Mumbai, Istanbul and Beijing. Barcelona, one of only two European cities to feature in the worst 10, came 7th, while capital cities Mexico City, Paris and Buenos Aires cam in at 8th, 9th and 10th position respectively. The top five quietest cities were all in Europe: Zurich ...
What is hunger? | World Economic Forum
Oct 16, 2015 · The FAO defines it as a “situation that exists when people lack secure access to sufficient amounts of safe and nutritious food for normal growth and development, and an active and healthy life”. Experts disagree about the link between hunger, malnutrition and food insecurity. In a recent paper, Sheryl L Hendricks, Director of the Institute ...
What is green hydrogen and why do we need it? An expert explains
Dec 21, 2021 · Green hydrogen is defined as hydrogen produced by splitting water into hydrogen and oxygen using renewable electricity. This is a very different pathway compared to both grey and blue. Grey hydrogen is traditionally produced from methane (CH4), split with steam into CO2 – the main culprit for climate change – and H2, hydrogen.
Green ammonia – what is it and how could it cut emissions?
Nov 30, 2023 · Ammonia has long been used as a fertilizer but is typically formed from hydrogen isolated from natural gas rather than water, in a process that results in large volumes of emissions. Given that global ammonia production accounts for 1.3% of energy-related CO2 emissions – not that far away from the aviation industry’s 2% – green ammonia ...
Whales are vital to curb climate change - this is the reason why
Nov 29, 2019 · Whales store huge amounts of CO2; They support the growth of phytoplankton, which stores 40% of all carbon produced