1 . The opening of California’s commercial crab season, which normally starts in November, is delayed once again to protect whales searching for their prey (猎物) along the coast.

California has been affected by a marine heat wave since May. The Blob, as this mass of warm water has become known, is squeezing cooler water preferred by whales and their prey close to shore, where fishermen set their traps. This crowding can lead to tangle (缠结) between whales and fishing equipment, endangering the animals’ lives and requiring rescue missions.

In a new study, scientists say they can now use global temperature models, commonly used in climate science, to predict up to a year in advance when hot ocean temperatures raise the risk of tangles between whales and fishing equipment.The tool analyzed in the new study, called the Habitat Compression Index, works by feeding sea-surface temperature measurements into an equation (方程式) that estimates the likelihood of whale habitat shrinking closer to shore.Regulators and fishermen agree that the new forecasting research could help them walk the tightrope between protecting whales and protecting local livelihoods (生计).

Mr Ogg, a commercial fishing boat captain, describes himself as a conservationist who doesn’t want to see whales harmed.“Fishermen have a big motivation to protect the natural environment,” he said, “because that’s where they make their living.” Previously, the challenge was adapting to changing conditions and fishing regulations on short notice, especially for smaller business owners and their crews.“One of the biggest problems we had was the unpredictability,” Mr Ogg said, “We were living from week to week then.”

Though scientists have shown the Habitat Compression Index can now forecast months in advance, state officials would probably wait to see conditions in real time before making decisions about the crab fishery, said Ryan Bartling, an environmental scientist at the California Department of Fish and Wildlife.

3 . Cell phones, tablets, laptops, smart-watches: the modern world is packed with a lot of devices that bring us connectivity, entertainment and information. Our hunger for the latest models leads to the “throwaway” culture, which means consumers often throw away old devices as soon as new ones come to the market, a habit that can have a significant effect on waste streams and the environment.

With concerns about e-waste growing, some companies are now turning to chemistry to develop solutions to recycle items like old cell phones, extracting value at the same time. One such example is the work being carried out by Mint Innovation, a clean tech firm based in Auckland, New Zealand. “We’ve developed a biological process for recovering valuable metals from electronic waste,” said Ollie Crush, the company’s chief scientific officer.

Crush explained that Mint Innovation’s system included grinding(磨碎)waste up into a powder. “The reason why we must do this is that we need to make sure that we’re exposing all the metal contained within to a chemical filtering(过滤)process,” he added.

When it comes to recovering a valuable material like gold, the technique used by Mint Innovation has a number of steps. According to a video, chemicals dissolve (溶解) the powdered waste into a solution, with any materials that haven’t dissolved filtered out. Microbes are then added to the mix. Gold atoms catch on to them in a process called “selective biosorption”. Next, the microbes coated gold are filtered, producing a paste which is then turned into a solid, “recycled” gold.

“Nearly 50% of the value of e-waste comes from the gold,” Cameron Weber, a senior lecturer at Chemical Sciences, said. “In fact, there’s actually more gold in e-waste as a concentration than there is in gold that’s been mined, which shows you the value of being able to take your e-waste and recycle and reuse some of the elements that are found in it,” he added.

Looking ahead, Crush, explained the process could potentially have a number of interesting applications. “The future for Mint Innovation is to prove that our technology works with a number of different materials,” he said. “So, we’ll just keep trying to see where our microbial process makes more sense.”

9 . Need to get rid of old clothes? You’re not alone: With fast fashion, it’s easier than ever to follow trends. But cheap clothes aren’t made to last, most of which often end up in a landfill (垃圾填埋场). Take US as an example: per person generates an average of 82 pounds of such waste every year, with 85 per cent of it going to landfills even though 95 per cent can be reused.

Donating is a popular alternative — but know that only about 10 to 20 per cent of donated clothing gets sold at thrift shops (廉价旧货店). While all but five per cent of donated clothes are resold for reuse or recycling, it’s impossible to know exactly how much ultimately becomes trash.

The best way to ensure good, usable clothing doesn’t become waste is to increase the chances it ends up with someone who wants it. First, don’t wait too long if you choose to donate clothing to an organization, big or small. The sooner you donate your unwanted items, the more demand there is for them. Wherever you donate, ensure clothes are clean and dry. If it’s damaged or stained, don’t send it to thrift shops. They don’t have the capacity to do repairs and it just creates a financial burden in addition to the eco-burden, and defeats the purpose of the charitable action.

Clothes that are stained or damaged beyond repair will likely never be re-worn but can still be diverted (使转向) from landfills. You can send your clothes directly to recycling companies, like through Retold Recycling or municipal programmes. Old clothes can be downcycled into other items like wipers for car washes, and even generated into new textiles (织品).

Recycling is better than landfilling. It might take time to do a little research to find the right organization that can actually use the items you’re looking to give away. But it’s more rewarding than throwing everything in a big garbage bag, dumping it into a bin, and hoping for the best.

10 . The natural world provides humans with essential services. For instance, forests channel water into rivers that irrigate crops while their roots prevent landslides. Over decades, therefore, governments have made promises about preserving the world’s biodiversity.

However, those promises have been broken many times, which has caused the depressing destruction of natural environments. One step towards avoiding yet more disappointment is to emphasize the close link between preserving biodiversity and the widely held goal of reaching net-zero carbon emissions. Unfortunately, less known is the link between them.

Given that biodiversity has an important role in meeting these carbon-reduction goals, you might think it would feature highly in the net- emissions plans. Not so. For example, faced with tighter regulation of emissions, many companies are now channeling more time and cash to their firms’ carbon footprints reduction and energy transition, yet the plans have too little to say about biodiversity.

That needs to change. Sale guarding biodiversity is an efficient way to control carbon emissions. Companies and investment firms should pay more attention to the opportunities from preserving ecosystems. By investing in biodiversity—directing capital to projects that repair an ecosystem—companies can offset (抵消) their emissions. By some estimates, projects to manage carbon-rich wetlands and to reforest cleared and could provide more than one-third of the emissions reductions that are needed to prevent more than 2°C of global warming.

Key to managing more capital is better measurement so that the link between investment in natural projects, biodiversity and carbon is made clear. Today some so-called carbon-offset projects that involve firms paying money to are questionable and not supported by evidence. Better guidelines and practice can help and so can new technology. Drones and satellites can improve the measurement of biodiversity and accounting systems can measure how spending on biodiversity compares with pouring cash into other kinds of carbon management.