Distinguish between Normal goods and inferior goods .

Normal goods are those whose demand rises in line with consumer income. Inferior goods are those whose demand decreases as a consumer's income rises.

1. A Normal Good is a good whose demand increases when income increases and an Inferior Good is a good whose demand decreases when income increases.

2. normal goods are those goods for which the demand increases when the income rises. Inferior goods are those goods for which the demand falls when the income of the consumer rises.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.