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By Victoria Masterson

  • The cost of renewable technologies like wind and solar is falling significantly, according to a new report.
  • This is fuelling the rise of renewables as the world's cheapest power.
  • The cost of large-scale solar projects has plunged 85% in a decade.
  • Retiring costly coal plants would also cut around three gigatonnes of CO2 a year.
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A wider variety of electric vehicles is being introduced. Volta Trucks

By Douglas Broom

There were 10 million electric cars on the world's roads at the end of 2020 as registrations soared by 41% in just one year. But when it comes to hauling heavy loads, most of the world's trucks still run on diesel.

But that's starting to change with the introduction in Germany of the world's first 16 tonne (approximately 17.6 U.S ton) all-electric truck.

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Marc_Osborne / iStock / Getty Images

Making the switch to solar energy can help you lower or even eliminate your monthly electric bills while reducing your carbon footprint. However, before installing a clean energy system in your home, you must first answer an important question: "How many solar panels do I need?"

To accurately calculate the ideal number of solar panels for your home, you'll need a professional assessment. However, you can estimate the size and cost of the system based on your electricity bills, energy needs and available roof space. This article will tell you how.

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Inspired by nature. Maldives Floating City

By Natalie Marchant

  • The waterfront residences will float on a flexible grid across a 200-hectare lagoon.
  • Such innovative developments could prove vital in helping atoll nations, such as the Maldives, fight the impact of climate change.
  • Dutch company is also testing the technology in the Netherlands.

The atoll nation of Maldives is creating an innovative floating city that mitigates the effects of climate change and stays on top of rising sea levels.

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Electric car registrations were up 41% in 2020. Reza Estakhrian / Getty Images

By Walé Azeez

While global car sales took a pandemic-related hit last year, electric vehicles (EVs) bucked the trend.

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The new greenhouse will accelerate Lufa's mission to grow food. Lufa

By Sean Fleming

  • The world's largest rooftop greenhouse is in Montreal, Canada.
  • It measures more than 15,000m2 and produces more than 11,000kg of food per week.
  • The company behind it had to hire 200 new employees due to pandemic-driven demand.

Can you grow enough produce for an entire city in rooftop greenhouses? Two entrepreneurs in Montreal, Canada, believe it might be possible.

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Amsterdam is one of the Netherlands' cities which already has "milieuzones," where some types of vehicles are banned. Unsplash / jennieramida

By Douglas Broom

  • If online deliveries continue with fossil-fuel trucks, emissions will increase by a third.
  • So cities in the Netherlands will allow only emission-free delivery vehicles after 2025.
  • The government is giving delivery firms cash help to buy or lease electric vehicles.
  • The bans will save 1 megaton of CO2 every year by 2030.

Cities in the Netherlands want to make their air cleaner by banning fossil fuel delivery vehicles from urban areas from 2025.

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By Natalie Marchant

  • Wood accounts for 10% of yearly waste material in the US.
  • The Baltimore Wood Project salvages wood from buildings to repurpose and resell locally to create a circular economy.
  • The initiative also has social benefits, by creating job opportunities in a post-industrial city that has an 8.5% unemployment rate.

An initiative in the US city of Baltimore wants to salvage and reuse as much wood as possible, while also creating jobs.

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By Douglas Broom

  • In the US, over half of fresh fruit and vegetables go to waste.
  • But a new invention claims to extend the shelf life of fresh fruit.
  • A simple sticker can add an extra 14 days of freshness, says StixFresh.
  • Using natural plant compounds, the sticker creates a protective layer, slowing the ripening process.
  • The company is hoping to extend the process to vegetables.
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Neglecting water risks, such as pollution and over-usage, will cost up to US$301 billion – five times higher than if we would face them. Christhian Gruhn / Unsplash

By Anna Huber

  • The importance of water – and its vital role in tackling global challenges – is not fully understood or communicated within water-rich nations.
  • On a personal, political and global level, there are many actions we can take to change the way we use and manage water.
  • World Water Day 2021 focuses on the value of water and how it impacts our everyday life, social and economic stability, climate change and the achievement of SDGs.

Today's World Water Day revolves around the social, economic and environmental value of water, and the essential role it plays in everyone's life. From determining where the world's oldest cities were built and where conflicts break out, to ensuring that we can access internet services and stop the spread of COVID-19 today, the significance of the role that water plays in the world cannot be understated. Water means equality: local water resources and separate toilets can determine whether a girl accesses education, while globally, it impacts the distribution of wealth.

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The of success or failure of nature-based solutions ultimately depends on the extent to which the world transitions to healthier, more sustainable planet-based diets. casanisaphoto / Getty Images

By Brent Loken

Natural ecosystems, such as forests, grasslands and oceans, do a pretty good job of storing carbon and supporting biodiversity.

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georgeclerk / E+ / Getty Images

By Lynsey Grosfield

  • Forests are not only complex ecosystems and habitats for wildlife, they are also central to the livelihoods of around 2 billion people.
  • The critical role they have in sequestering carbon from the atmosphere has led to many international reforestation projects.
  • To help this global effort we've listed 10 key ways to improve tree planting.

There are around 60,000 tree species in the world, spread out across myriad ecosystems. Within these ecosystems, and around these trees, are countless other organisms ranging from the tiniest bacterium to the mightiest moose.

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Roy Morsch / The Image Bank / Getty Images

By Sean Fleming

  • In the US alone, more than 50 million people have an allergy.
  • Climate change is lengthening the duration of natural pollen seasons.
  • In the US, pollen seasons are starting 20 days sooner than they did in the 1990s.
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