Correct!

Anything organic — that is, anything that has once been alive — will decompose and become compost. But just because you can, doesn't mean you should!

Plant material that is obviously diseased or carrying pests, as well as perennial weeds like grass runners and bulbs are the main items to avoid. They will survive the hottest compost and come back to haunt your garden beds. Another no-no is dog and cat droppings. While manure from cows, sheep and chickens are OK in the garden, pet poo is more likely to contain parasites that composting won't kill and that can be passed to humans.

It takes 2400 litres of water to create a hamburger, 2000 litres to create a t-shirt, 140 litres to create a cup of coffee and 32 litres of water to create a microchip. The water used in creating the hamburger includes water to grow the food the cow eats, water that the cow drinks, water for processing the meat and also water for cleaning the cow.

The current rate of deforestation is 160,000 square kilometers per year, which equates to a loss of approximately 1% of original forest habitat each year.

Correct!

As you know from the carbon cycle, some processes, like photosynthesis, use up carbon dioxide quickly, while others, like carbon dioxide captured by weathering of rocks, operate over many thousands of years. Thus, you can't put your finger on the exact life span of a given molecule of CO2 in the atmosphere.

The bottom line is that once emitted, CO2 continues to affect the climate for decades to millennia. That's why reducing emissions quickly is important. Because of the existing CO2 in the atmosphere, the Earth will continue to warm even after we stop burning fossil fuels.

The complexity of CO2 residence time is summed by Zeke Hausfather in Yale Climate Connections:

"Using a combination of various methods, researchers have estimated that about 50 percent of the net anthropogenic pulse would be absorbed in the first 50 years, and about 70 percent in the first 100 years. Absorption by sinks slows dramatically after that, with an additional 10 percent or so being removed after 300 years and the remaining 20 percent lasting tens if not hundreds of thousands of years before being removed."