On Humans

Overview

The impacts of climate change include warming temperatures, changes in precipitation, increases in the frequency or intensity of some extreme weather events, and rising sea levels. These impacts threaten our health by affecting the food we eat, the water we drink, the air we breathe, and the weather we experience.

What is the Greenhouse Effect?

For centuries, humans have been burning fossil fuels to power their lives. This process releases additional greenhouse gases into the atmosphere, trapping heat that would escape into space otherwise.
We’ve known for decades about the damage all that extra heat is doing to the Earth. Now, a recent UN-backed report on climate change highlights just how dangerous that process has been. The planet has already warmed 1 degree Celsius and temperatures could rise even more – significantly changing life as we know it.
We’re already seeing the first impacts of this crisis. But here’s the good news – we still have time to turn things around.

HERE ARE THREE WAYS THAT CLIMATE CHANGE IS ALREADY AFFECTING PEOPLE’S LIVES:

1- Health: 

Climate action is just what the doctor ordered. And we mean that quite literally. Medical professionals have increasingly been sounding the alarm about the risks and consequences of continually burning fossil fuels.

Here’s the problem. The same dirty fossil fuel emissions that contribute to the greenhouse effect can lead to respiratory diseases – such as asthma – in children and adults. And they can be quite dangerous. Air pollution kills an estimated 7 million people worldwide every year, according to the World Health Organization.

By trapping heat into our planet, carbon emissions also damage the human body and mind in other ways. We’ve all heard about the risks of heat strokes. But did you know that warmer temperatures are linked to a 2 percent increase in mental health issues such as stress, anxiety,

2- Home: 

There’s really no place like home. But for many living in coastal communities, sea-level rise could lead to an unwanted (and sudden) move.

As our globe warms, glaciers melt and ocean water expands, leading seas to rise about 7 to 8 inches on average since 1900 – about 3 inches of that since 1993. The added volume of water creeping up coastlines slowly swallows land and homes and fuels more flooding inland (to name just a few impacts).

For example, in the United States, from 2005 to 2015, the median annual number of flood days more than doubled on the East Coast between Florida and North Carolina, thanks in part to rising sea levels.

3- Food:

The world population is expected to grow to almost 10 billion by 2050. With 3.4 billion more mouths to feed, and the growing desire of the middle class for meat and dairy in developing countries, global demand for food could increase by between 59 and 98 percent. This means that agriculture around the world needs to step up production and increase yields. But scientists say that the impacts of climate change—higher temperatures, extreme weather, drought, increasing levels of carbon dioxide and sea level rise—threaten to decrease the quantity and jeopardize the quality of our food supplies.

A recent study of global vegetable and legume production concluded that if greenhouse gas emissions continue on their current trajectory, yields could fall by 35 percent by 2100 due to water scarcity and increased salinity and ozone.

“We’re most concerned about the sharply reduced yields,” said Peter de Menocal, Dean of Science at Columbia University and director of the Center for Climate and Life. “We already have trouble feeding the world and this additional impact on crop yields will impact the world’s poorest and amplify the rich/poor divide that already exists.”

But climate change will not only affect crops—it will also impact meat production, fisheries and other fundamental aspects of our food supply.