Electric Vehicles' Battery Problem
The world needs a lot of lithium for electric vehicle (EV) batteries because many countries plan to stop selling gasoline cars. Lithium is hard to get, and most of it comes from just four countries. Mining lithium uses a lot of water and can harm the environment and local communities, like in Nevada where a big lithium mine is planned. Also, other important metals for batteries, like cobalt, often come from places with bad working conditions and human rights issues. To solve these problems, new battery types, like solid-state batteries, are being developed. These batteries could use less lithium and be safer, but they are still far from being widely available. Another idea is to get lithium from geothermal energy plants, which is being explored in California. While EVs are much better for the environment overall than gasoline cars, getting the materials for their batteries raises serious questions about how much environmental and social harm is acceptable for a greener future.
Key Vocabulary
A unit of energy equal to one watt of power sustained for one hour, commonly used to measure the capacity of batteries or the total energy consumed by electrical devices.
Examples:
- The laptop battery has a capacity of 60 watthours, allowing for several hours of use.
- To calculate the daily energy consumption, one must sum up the watthours used by all appliances.
- The portable power bank boasts 100 watthours, making it ideal for charging multiple devices on the go.
Causing or likely to cause an argument; controversial.
Examples:
- The proposal to build a new factory in the residential area became a highly contentious issue among local residents.
- Historical interpretations of the event remain contentious, with scholars offering diverse perspectives.
- The decision to implement stricter regulations was contentious, leading to widespread debate and protests.
Located or operating on the surface of the ground, as opposed to underground.
Examples:
- The new amusement park ride features an impressive aboveground track that winds through the trees.
- Many urban gardens utilize aboveground planters to cultivate vegetables in limited spaces.
- The construction crew installed an aboveground pipeline to transport water to the remote village.
To be drawn or attracted to something; to move toward a person, place, or thing by natural tendency or inclination.
Examples:
- During lunch, the conversation often gravitates towards plans for the upcoming weekend.
- The young artist gravitates towards abstract forms and vibrant colors in her paintings.
- In a group setting, the discussion tends to gravitate to topics of common interest.
A North African dish consisting of steamed semolina, traditionally served with meat or vegetable stew.
Examples:
- For dinner, we prepared a flavorful lamb tagine served over a bed of fluffy couscous.
- The recipe called for toasted almonds and fresh herbs to be mixed into the warm couscous.
- She enjoyed the light and healthy salad, which featured a generous portion of whole wheat couscous.
To become progressively worse; to decline in quality or condition.
Examples:
- Without proper maintenance, the old wooden bridge will quickly deteriorate.
- His health began to deteriorate rapidly after the unexpected illness.
- The quality of the public park's facilities will deteriorate if funding is not increased.
To be stuck or entangled in a difficult or unpleasant situation.
Examples:
- The project became mired in bureaucratic delays, slowing down its progress significantly.
- After months of debate, the negotiation process was mired in disagreements over minor details.
- The company found itself mired in financial difficulties after a series of poor investments.
A difficulty or obstacle that must be overcome.
Examples:
- The biggest hurdle for the new startup was securing sufficient initial funding.
- Learning a new language presents several hurdles, including mastering unfamiliar grammar rules.
- Overcoming the technical hurdles required innovative solutions and persistent effort.
To struggle or cope with a difficult problem or challenge.
Examples:
- The community leaders had to grapple with the complex issue of urban development and housing shortages.
- She spent hours trying to grapple with the intricate details of the legal document.
- The team continued to grapple with the unexpected technical difficulties throughout the presentation.
Lasting or existing for a long or apparently infinite time; enduring or continually recurring.
Examples:
- The issue of affordable housing remains a perennial concern for city planners.
- His kindness and generosity were perennial qualities that endeared him to everyone.
- The debate over the budget has become a perennial feature of legislative sessions.
A hard, silvery-white metallic element, often used in alloys and for coloring glass, and a crucial component in many modern battery technologies.
Examples:
- The brilliant blue pigment in the painting was derived from cobalt compounds.
- Researchers are exploring alternatives to cobalt in battery manufacturing due to ethical sourcing concerns.
- The new alloy contained a small percentage of cobalt, which significantly increased its strength and heat resistance.
Short for preparation; the act or process of getting ready for something.
Examples:
- The chef spent the morning on prep, chopping vegetables and portioning ingredients for the evening service.
- A lot of prep work goes into organizing a successful conference, from booking venues to coordinating speakers.
- Before the exam, students dedicated several hours to prep, reviewing notes and practicing past papers.
A town that experiences a sudden and rapid growth in population and economic activity, often due to a discovery of a valuable resource or a new industry.
Examples:
- During the gold rush, the small settlement quickly transformed into a bustling boomtown.
- The discovery of oil turned the quiet fishing village into a vibrant boomtown overnight.
- The rapid expansion of the tech industry led to San Francisco becoming a modern boomtown.
Interrupted or interspersed at intervals.
Examples:
- His speech was punctuated by bursts of applause from the enthusiastic audience.
- The tranquility of the forest was occasionally punctuated by the chirping of birds.
- Her quiet concentration was punctuated by the rhythmic ticking of the old grandfather clock.
Relating to or produced by the internal heat of the Earth.
Examples:
- Iceland utilizes its abundant geothermal resources to generate a significant portion of its electricity.
- The new resort features a natural hot spring, heated by geothermal activity beneath the surface.
- Engineers are developing innovative ways to harness geothermal energy for residential heating and cooling systems.
Having a salty taste or quality, especially suggestive of the sea.
Examples:
- The fresh oysters had a distinct briny flavor, reminiscent of the ocean.
- After the storm, the air near the coast was filled with a refreshing, briny scent.
- She enjoyed the briny taste of the olives as a snack before dinner.
Without assistance from others; by oneself.
Examples:
- She singlehandedly organized the entire charity event, from fundraising to logistics.
- The small team singlehandedly developed the groundbreaking software application.
- He singlehandedly built the intricate model ship over several months of dedicated work.
Arranged or put together in a particular way; designed or set up for a specific purpose.
Examples:
- The software was configured to automatically back up all user data at the end of each day.
- The versatile furniture can be configured in multiple ways to suit different room layouts.
- The network system was carefully configured to ensure maximum security and efficiency.
To drive, push, or cause to move forward or onward.
Examples:
- The powerful engine was designed to propel the vehicle to high speeds.
- His ambition and talent helped to propel him to the top of his field.
- The strong current continued to propel the boat further downstream.
An intense but short-lived passion or admiration for someone or something.
Examples:
- His initial infatuation with the new gadget quickly faded once he discovered its limitations.
- She had a brief infatuation with classical music before gravitating towards jazz.
- The public's infatuation with the latest fashion trend lasted only a few months.