对那些对sustainabil读和写ity, dire projections are revealed every day. Between rainforest fires and ocean pollution, much of the news is grim. However, 2019 also brought good news. In the spirit of optimism as we start a new year, let’s hope our species can build on this year’s gains in 2020. Here are a few high points from 2019.

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two women sit on top of a pile of bananas and banana leaves

Banana leaves as packaging

If you’ve ever had the good fortune to visit a southern Indian restaurant in Asia, you may have been served dinner on a banana leaf instead of a plate. Now, that idea has found its way into some Thai supermarkets.Forbesreported on Rimping supermarket in Chiangmai, Thailand that wraps its produce in banana leaves and secures them with a piece ofbamboo. Way to cut down on plastic packaging!

Robots rejuvenating reefs

As we learned in the classic yet highly disturbing film2001,not allrobotsare trustworthy. However,Tech Crunchinformed us about Larvalbot, a new underwater robot that is reseeding old corals with new polyps. A bot-controlling team at Queensland University of Technology is finding that robots can do this much faster than humans — and lack that pesky need to breathe.

a brownish-orange coral reef to the left with schools of fish to the right

Good news for the American barrier reef

Meanwhile, in Florida, researchers at Tampa’sFlorida Aquariumworked on “Project Coral” in partnership with London’sHorniman Museum and Gardens. They announced their first successful attempt at Atlantic coral reproduction in a lab setting. The objective: to create largecoralegg deposits in a laboratory and ultimately repopulate the Florida Reef Tract.Inhabitatreported about how this could have important implications for saving barrier reefs.

帮助热带雨林

One Green Planetheld out some hope for the tropical land being devastated bypalm oilplantations. A collaboration between the Peruvian government, the National Wildlife Federation, conservation organization Sociedad Peruana de Ecodesarrollo and the Peruvian Palm Oil Producers’ Association (JUNPALMA) led to an agreement to only produce sustainable and deforestation-free palm oil by 2021. Peru will join the ranks of South American countries fighting palm oil deforestation, the second after Colombia.

Cactus plastic developed in Mexico

Research professor Sandra Pascoe Ortiz and other scientists at the University of Valle de Atemajac in Zapopan,Mexicoused prickly pear juice to craft a new biodegradable plastic. This cactus plastic begins breaking down in a month when placed in soil and only a few days in water. Unlike traditional plastics, no crude oil is required, according toForbes.

Things are looking up for whales

Humpbackwhaleshave made a comeback off the South American coast,USA Todayreported. After nearing extinction in the 1950s, numbers have surged from a low of 440 South Atlantic humpbacks to more than 25,000. The rise in population coincides with the end of whaling in the 1970s.

North American whales got a new app this year.Inhabitatreported on Washington State Ferries implementing a whale report alert system. This new app notifies ferry captains of the whereabouts of orcas and other cetaceans inPuget Soundto help prevent boat strikes.

Baby girls and tree planting

In the Indian village of Piplantri, families plant 111 trees every time a baby girl is born. Since 2006, this village has been fighting stigma against the double X chromosome, leading to more than 350,000treesplanted so far. The number 111 is said to bring success in Indian culture, according to thisYouTube videoabout Piplantri.

a blue sky with light clouds over a field of sunflowers and a wind turbine to the left

Renewable energy growth

The International Renewable Energy Agency released a study showing thatrenewable energycapacity continued to grow globally. Solar and wind energy accounted for 84 percent of recent growth, according toBioenergy International.

Brazilian street dogs and cats get comfy and stylish beds

Young artist Amarildo Silva realized he could do something about two problems in his Brazilian city Campina Grande: stray animals and too much trash. He began making colorful beds out ofupcycledtires for both pets and strays. The 23-year-old has been able to leave his supermarket job and make a living as an artist while having a positive and far-reaching effect on his city.

The straydogsthemselves inspired Silva’s breakthrough idea. He noticed that at night, they liked to bed down in discarded tires. So Silva began to collect old tires from landfills, streets and parking lots. After he cleans and cuts them down to size, he decorates the tires with paw prints, bones and hearts, according toBored Panda. Dogs and cats sleep better, and people see art, not the eyesores of discarded tires.

a forest covered in fog

Video game entrepreneur saves North Carolina forests

Tim Sweeney, co-founder of Epic Games, has amassed billions with games likeFortnite, Unreal TournamentandGears of War.Fortunately for the world, he’s putting the money to excellent use. Over the last decade, he’s spent millions onforestpreservation in his home state of North Carolina, according toThe Gamer. This video game developer likes his land undeveloped.

South Korean food recycling soars

Since 2005, when the South Korean government prohibited people from sending food to landfills, the amount of recycled food waste has soared to 95 percent. This is amazing, considering less than two percent was recycled in 1995. Seoul residents are now required to discard their food waste in special biodegradable bags, which cost families an average of six dollars per month. Money paid for bags covers more than half the cost of collecting and processing this waste, according toHuffington Post.

Will artificial islands draw wildlife back to Netherlands?

After a dyke collapsed in the Markermeer, an enormous, 270-mile Dutch lake, water became too cloudy with sediment to sustain fish, plants and birds. Now a Dutch NGO called Natuurmonumenten is building five artificial islands out of silt at a cost of €60 million, mostly from public donation, according toThe Daily Mail. They hope that this faux archipelago will drawwildlifeback to the lake. And so do we. Here’s hoping for more good news in 2020.