Global Problems — Unit 21, Pre-intermediate to Intermediate English

When our science teacher asked us to choose a local environmental issue, my group selected the polluted river near school. At first, we thought one cleanup day would solve everything, but we soon learned that **pollution** had many sources. Plastic **waste** came from markets, while dirty **runoff** arrived after rain. Because the problem was complex, we divided tasks and collected data for two months.

We interviewed residents, shop owners, and factory managers to understand how habits affect water quality. Several people mentioned **climate change**, saying heavier storms now carry more rubbish into the river. We also read about **deforestation** in nearby hills, which reduced natural barriers that once slowed soil movement. Although these causes were different, they were clearly connected. Therefore, our final plan included education, waste points, and **tree planting** rather than one single action.

The project ended with a public meeting where students presented realistic goals. We recommended better **recycling**, support for **renewable energy**, and stricter checks on illegal **dumping**. Not everyone agreed at first; however, many visitors signed up for monthly river **monitoring**. I learned that global problems become less frightening when communities share responsibility. If people work together patiently, small local steps can contribute to wider environmental change.

That was eighteen months ago, and I want to be honest about what actually happened next, because school projects usually end at the presentation and this one did not.

The **monitoring** worked. Thirty-one people signed up; nine are still going. On the first Saturday of every month they walk the same two-kilometre stretch, record what they find, and photograph it. Nine people is far fewer than thirty-one, but nine people every month for eighteen months is a genuine data set, and it is the reason anybody took us seriously.

The **tree planting** did not work. We planted 140 saplings on the hillside in November. About sixty survived. We had chosen the wrong species for the soil and nobody watered them through a dry spring. Our teacher made us write that up as carefully as the successes, which I resented at the time and now think was the most useful thing she did.

The biggest change was one we did not plan. Because the **monitoring** photographs were dated and consistent, the council used them to identify a company that had been **dumping** waste at night. That company was fined in March.

We did not clean the river. It is still polluted, and one school cannot fix that.

But it is measurably less polluted at one bend, one company has stopped, and nine adults now know what the water looks like every month.

I will take that.