Scientists have studied and ruled out
natural climate drivers as the main cause of global warming since the preindustrial era.
Not exact matches
President - elect Donald Trump's choice
as Energy secretary also told the Senate Energy and
Natural Resources Committee considering his nomination that he has changed his view on
climate change, now viewing human activity
as a contributing factor while not stating that it is the primary
driver.
In the spring of 2014, Koonin's drafting committee produced a statement that attributed equal weight to human influences and
natural variability
as a
driver of
climate change, according to a source who declined to be named.
Global temperatures could break through the 1.5 °C barrier negotiated at the Paris conference
as early
as 2026 if a slow - moving,
natural climate driver known
as the Interdecadal Pacific Oscillation (IPO) has,
as suspected, moved into a positive phase.
Simulating
natural and humanmade
climate drivers, scientists showed that the decline in rainfall is primarily a response to humanmade increases in greenhouse gases
as well
as a thinning of the ozone caused by humanmade aerosol emissions.
CO2 getting pushed aside
as a
climate driver by
natural climate factors like solar activity.
The Specs Type of vehicle All - wheel - drive, mid-sized SUV Engine 230 - hp 2.5 L DOHC supercharged four - cylinder with electric motor Power 250 net hp; 243 lb - ft of torque Transmission Continuously variable Brakes Four - wheel disc with ABS Tires P235 / 55R20 (optional) Price (base /
as tested) $ 53,950 / $ 62,950 Destination charge $ 1,995
Natural Resources Canada fuel economy (L / 100 km) 7.6 city, 6.9 highway Standard features Auto on / off bi-xenon headlights, leather seats, eight - way power
driver's seat, heated front seats and steering wheel, cruise control, dual - zone automatic
climate control, rear - zone
climate control, 60 / 40 - split folding second - row bench seat, 50 / 50 - split folding third - row seat, power door locks, windows and mirrors, push - button start, speed - sensitive windshield wipers, Bose premium audio system with satellite radio and 13 speakers, steering wheel audio controls, rear - view monitor, hard - drive navigation system, Infiniti Connection telematics system, around - view monitor with moving object detection and front and rear sonar system Options Technology package ($ 3,500), includes backup collision intervention, intelligent brake assist with forward collision warning, blind spot warning and intervention, lane departure warning; Deluxe Touring package ($ 3,200), includes 20 - inch aluminum wheels, Bose surround - sound audio system with 15 speakers, panoramic sunroof; Theatre package ($ 2,300), includes dual seven - inch colour monitors and two wireless headphones
of torque @ 4,400 rpm Transmission Continuously variable Brakes Four - wheel disc with ABS Tires P225 / 60R18 Price (base /
as tested) $ 28,495 / $ 38,895 Destination charge $ 1,650
Natural Resources Canada fuel economy (L / 100 km) 12.0 city, 8.6 highway Standard features (Limited) Voice - activated, in - dash GPS navigation system with seven - inch, AM / FM / CD / MP3 / WMA, SMS text messaging capability, SiriusXM Traffic, 3.5 - mm auxiliary jack, two USB slots, harman / kardon 12 - speaker audio system including subwoofer and 576 - watt amplifier, dual - zone automatic
climate control, auto - dimming rear - view mirror with Homelink, foldable and heated body - colour mirrors, automatic on / off headlights with welcome lighting, tilt and telescopic steering wheel with integrated cruise control, power windows with auto up / down, four - way power - adjustable passenger seat, 10 - way power
driver's seat with memory function, leather seat surfaces, HID headlights, heated rear seats and rear
climate control vents, power tilting and sliding glass sunroof, windshield wiper de-icer, power rear liftgate with memory function, leather - wrapped steering wheel and gear selector, rear / side vehicle detection system, side mirror integrated turn signals, auto - dimming side - view mirror with approach lighting, hill holder system with memory, rear - view camera
Type of vehicle All - wheel - drive sport / luxury four - door coupe Engine Twin - turbo 5.5 L DOHC V8 Power 576 hp @ 5,500 rpm; 590 lb - ft of torque @ 2,000 rpm Transmission Seven - speed manumatic Brakes Four - wheel disc with ABS Tires P255 / 35R19 front, P285 / 30R19 rear Price (base /
as tested) $ 122,250 / $ 127,750 Destination charge $ 2,075
Natural Resources Canada fuel economy (L / 100 km) 13.5 city, 9.1 highway Standard features Automatic
climate control, power windows, rear window sunshade, glass sunroof, Weight Sensing System, analogue clock, auto - dimming rear - view and
driver's side mirrors, power folding and heated exterior mirrors, power tilt and telescopic steering column, 14 - way power heated and cooled front seats, heated rear seats, illuminated door sill panels, harman / kardon surround - sound audio system, COMAND APS with navigation system and DVD changer, media interface, Distronic, Parktronic active paring assist, active blind - spot assist, active lane - keeping assist, auto stop / start function, hill start assist, power trunk closer, AMG styling package, AMG trunk lid spoiler, entry / exit lighting, UV protection on windows, red brake calipers Options Premium Package ($ 2,300), Advanced Driving Assistance Package ($ 2,700), AMG triple - spoke wheels ($ 500)
@ 4,500 rpm (226 lb. - ft total) Transmission E-Continuously Variable Transmission (E-CVT) Brakes Four - wheel disc with ABS Tires P225 / 50R17 Price: base /
as tested $ 29,590 / $ 35,690 Destination charge $ 1,695
Natural Resources Canada fuel economy (L / 100 km) 3.7 city, 4.0 highway Standard features E-CVT transmission, Eco-Assist Driving Coach System, Hill Start Assist, electric assisted power steering, Acoustic Vehicle Alerting System, Vehicle Stability Assist with traction control, tire pressure monitoring system, immobilizer, security system, power operated heated mirrors, Halogen projector beam headlights, LED daytime running lights, LED taillights, speed sensing wipers, dual - zone
climate control with filtration, proximity key entry system, remote trunk release, multi-angle rear camera system,
driver's expanded view mirror, Bluetooth phone interface, Lane Watch blind spot display, cruise control, front heated seats, 8 - way power adjustable
driver's seat, 4 - way manual adjustable passenger seat, AM / FM / CD / MP3 / WMA audio system with 6 speakers, 8 - inch i - MID (intelligent Multi-Information Display) LED display screen, HondaLink with audio touch screen, Hill - Start Assist, full complement of airbags (including front, side, and side curtain units), ABS brakes with Brake Assist, EV mode button, ECON mode button, Active Noise Cancelation.
At that time, my position was that most of the 20th century warming was
natural because
as a geologist, I was well aware of
climate (
climate is a subset of geology because when we study rocks and their depositional history,
climate is a huge
driver of how and why different rocks were deposited).
As former NASA employees, we feel that NASA's advocacy of an extreme position, prior to a thorough study of the possible overwhelming impact of
natural climate drivers is inappropriate.
bob said «it is a bit harder to predict future trends in
climate since you also have to predict future trends in emission
as well
as future trends in the
natural drivers.»
The current models actually do a decent job modeling
climate but it is a bit harder to predict future trends in
climate since you also have to predict future trends in emission
as well
as future trends in the
natural drivers.
In the spring of 2014, Koonin's drafting committee produced a statement that attributed equal weight to human influences and
natural variability
as a
driver of
climate change, according to a source who declined to be named.
When models only include
natural drivers of
climate change, such
as natural variability and volcanic eruptions, they can not reproduce the recent increase in temperature.
As Skeptical Science readers are undoubtely well aware, the impact of
natural climate drivers has been very thoroughly studied, and they simply can not account for the observed global warming or
climate change, especially over the past 50 - 65 years (Figure 1).
Bearing in mind their previous hubris about short - term cycles being manmade, their gross, unproven assumption about CO2
as a
climate driver and the fact that the signal is far less than the error bars in the noise then why would anyone think that the long - term trend is anything other than just a separate upswinging
natural cycle?
The IPCC AR5 Technical Summary does not even mention the PDO, AMO or ENSO
as being
natural climate drivers during the industrial era.
Over the period the known
natural drivers of
climate have been flat or slightly negative, which leaves just 2 possibilities: some
as yet undiscovered
natural cause or that,
as the IPCC conclude, the dominant factor was anthropogenic forcing from increased greenhouse gas concentrations, which are after all, at least 35 % higher than at any time in the last 600K years.
The impacts of
natural drivers on
climate disruption have been investigated repeatedly and in detail,
as the two figures (from the Skeptical Science website) below show.
The real deal, say Lüning and Vahrenholt, is that
natural climate factors have been known
as real
drivers for over a decade, and activists, scientists and the IPCC continue to cover them up.
While the Earth's atmosphere has seen higher levels of carbon dioxide than it does now,
as well
as higher temperatures and far greater sea levels, those instances were due to
natural drivers of
climate change, such
as periodic variations in the planet's orbit and in solar energy output.
The study shows that there are four regions of the US where human - caused
climate change will ultimately overtake
natural variability
as the main
driver of heat waves in the coming decades.