Sentences with phrase «human activities such»

Biodiversity diminishes as some species become extinct due either to human - caused climate change or to related human activities such as habitat destruction or toxic pollution.

Human activities such as agriculture, fuel combustion, wastewater management, and industrial processes are increasing the amount of N2O in the atmosphere.

The identification of other, sometimes more powerful, greenhouse gases such as methane, the contributions to atmospheric carbon dioxide from other human activities such as deforestation and cement manufacture, better understanding of the temperature - changing properties of atmospheric pollution such as sulphur emissions, aerosols and their importance in the post-1940s northern hemisphere cooling: the knowledge - base was increasing year by year.

It occurs naturally and is also a by - product of human activities such as burning fossil fuels.

For centuries, human activities such as hunting and encroachment have made life difficult for the largest species, from mammals and fish to insects and trees, leading to an evolutionary trend towards the miniature.

1) Negatively: Clouds and cloud formation, mostly 2) Positively: Shallow waters caused naturally or by human activities such as putting up dams in rivers and making shallow pools & reservoirs for irrigation and water consumption.

Nearly half of the UK population (47 percent) think either that most climate scientists reject the idea that human activities such as fossil fuel burning are the main driver of climate change (11 percent), or that scientists are evenly split on the issue (35 percent).

On the question of whether observed changes in climate can be attributed to human activities such as burning fossil fuels, Bolin noted that «The global mean temperature has increased by 0.3 - 0.6 degrees C since the late 19th century, and about 0.3 degrees over the last 40 years.»

The destruction caused by natural disasters such as Hurricane Katrina and human activities such as mountaintop removal mining are powerful examples of how the environment and society are tightly interwoven.

For instance, «the burning of fossil fuels, together with other human activities such as deforestation, undoubtedly releases greenhouse gases — especially carbon dioxide — into the air.

They are formed unintentionally and predominantly released as byproducts of human activities such as incineration and fuel combustion.

However, from a recent report leading scientists in the world are now convinced that human activities such as fossil fuel burning is another contributing factor causing climate change.

Many scientists say the warming is due, in part, to human activities such as driving cars and burning coal, which release heat - trapping gases into the atmosphere,

Human activities such as dam building, logging, pollution, and overfishing have already depressed salmon populations in the Northwest to historically low levels.2 Many salmon species are classified as threatened or endangered.

Forests are affected by other human activities such as farming or logging, and many are in a stage of ecological succession with lower biomass compared to mature forests.

At the moment, the uncertainties in modeling and complexities of the ocean system even prevent any quantification of how much of the present changes in the oceans is being caused by anthropogenic climate change or natural climate variability, and how much by other human activities such as fishing, pollution, etc..

In fact, 97 percent of actively publishing climate scientists agree — that's right, there is an overwhelming 97 % consensus position that global warming is real and largely driven by human activities such as the burning of fossil fuels.

They suggested that human activities such as the pet trade and invasive species had introduced and spread that deadly disease.10

This suggested that over the past 20 years, human activities such as the burning of fossil fuels and deforestation had begun to dominate «the natural factors involved in climate change,» he said.

«Climate Change» is a general term used when referring to a wide range of effects brought about by human activities such as burning fossil fuels, deforestation, and «heat island effects» resulting from buildings and pavement in the major human settlements.

Consequently an increase in the atmospheric concentration of greenhouse gases from human activities such as burning fossil fuels leads to an enhanced greenhouse effect.

The IPCC has not only asserted that global warming is occurring, but that to a large degree it is caused by human activities such as burning fossil fuels rather than being a natural phenomenon.

«Due to human activities such as the combustion of fossil fuels and deforestation, and the increased release of CO2 from the oceans due to the increase in the Earth's temperature, the concentration of atmospheric carbon dioxide has increased by about 35 % since the beginning of the age of industrialization.»

Whether human activities such as burning fossil fuels is contributing to the greenhouse effect is where much of the debate lies.

With climate - related challenges such as unusually high rainfall being compounded by the impact of human activities such as boating, agricultural runoff, tourism, aquaculture, ports, energy projects and housing, the scientists argue that we need broad and coordinated action to stem the destruction.

Yet human activities such as large - scale farming and deforestation are compromising the health of soil on a global scale.

Despite their great importance and beauty, coral reefs are still being threatened around the world by human activities such as pollution, over fishing, boat groundings, and general carelessness of snorkelers and divers.

It also acts as a carbon sink — absorbing about 30 % of atmospheric CO2 released from human activities such as burning fossil fuels...

The concentration of atmospheric CO2 has increased dramatically since the Industrial Revolution (from around 280 parts per million [ppm] in preindustrial times to 401 ppm in 2015), primarily due to human activities such as the burning of fossil fuels and changes in land - use.

When aerosols from human activities such as industrial plant and vehicle emissions are added to the system, the energy budget has to deal with the increase.

Citizen scientists around the UK are taking part in Earthworm Watch to help researchers investigate how human activities such as planting schemes, moving topsoil and adding fertilisers affect the ability of earthworms to create healthy soils.

Hypoxia is caused by excessive nutrient pollution, often from human activities such as agriculture that results in too little oxygen to support most marine life in bottom and near - bottom water.

Over a long enough period of time, the increased carbon burial could help offset a small fraction of carbon emitted by human activities such as fossil fuel burning, says study coauthor Antje

Even though large amounts are released into the air by human activities such as coal burning, smelting, mining and waste incineration, mercury also occurs naturally in the environment, where it undergoes a complex chemical cycle.

Hypoxic (very low oxygen) and anoxic (no oxygen) zones are caused by excessive nutrient pollution, often from human activities such as agriculture, which results in insufficient oxygen to support most marine life in near - bottom waters.

A new global analysis of forest habitat loss and wildlife extinction risk published July 19 in the journal Nature shows that species most at risk live in areas just beginning to see the impacts of human activities such as hunting, mining, logging and ranching.

These gases come from human activities such as combustion of coal and oil as well as natural sources such as emissions from plants.

Human activities such as manufacturing had made the Port River estuary near Adelaide, Australia, inhabitable to bottlenose dolphins.

However, there was a growing fragmentation between those habitat patches, due to human activities such as roads or development, and natural events, such as the catastrophic Wenchuan Earthquake in 2008.

New research, led by the University of Southampton, has found that human activities such as shipping are having a noticeable impact on marine species and their native habitats.

«Broad changes will likely spread across the ecosystem, affecting human activities such as fishing.»

Over the past 250 years, human activities such as fossil fuel burning have raised the atmospheric CO2 concentration by more than 40 % over its preindustrial level of 280 ppm (parts per million).

In this study, Horney and colleagues focused on PAHs, which are a product of combustion from human activities such as petroleum consumption in transportation or natural processes such as wildfires.

To understand why the long - spined urchins have not returned to the reef more than 30 years later, Scripps scientists Katie Cramer and Dick Norris analyzed the amount of fossilized urchin spines that accumulated in reef sediment layers over the past 3,000 years to paint a picture of life on the reef before it was altered from the disease outbreak and human activities such as fishing and pollution.

Tim Preso, attorney for the environmental law firm Earthjustice, said grizzlies have made a comeback in that region thanks chiefly to habitat protections that curb human activities such as logging.

Marine biodiversity is in jeopardy from human activities such as acidification from carbon emissions, posing an existential threat to many marine animals, Wiens said.

Some greenhouse gases occur naturally in the atmosphere, while others result from human activities such as burning of fossil fuels such as coal.

Forests are affected by other human activities such as farming or logging, and many are in a stage of ecological succession with lower biomass compared to mature forests.

Now, research suggests that for the past decade, such stratospheric aerosols — injected into the atmosphere by either recent volcanic eruptions or human activities such as coal burning — are slowing down global warming.

However, the continuity of structure and function from nonliving matter to living and from the simplest forms of life to the most complicated strongly suggests that even the most characteristic human activities such as thought and consciousness have an explanation, as yet only partly known, in chemical and physical phenomena.